Statistics question and answers for September 28, 2023
- Q Question 3 3 If F1 1 N x1 1 m F2 2 Newton and x2 2 meters what is the location of FR i e the distance x X2 O...
- Q 4 Find Fr 100 N m O 100 N O 12 N O 1200 N 600 N 12 m
- Q 2 1 A coin is tossed twice and the four possible outcomes are assumed to be equally likely If A is the event both head and tail have appeared and...
- Q 1 Value x of X 0 2 4 2 5 6 3 X 0 13 Fill in the P X x values to give a legitimate probability distribution for the...
- Q 6 8 6 10 x 12 13 14 16 A TV executive is interested in the popularity of a particular streaming TV show She has been told that a whopping...
- Q An annual coupon bond has a face value of 1 000 and a coupon rate of 6 0 Time to maturity is 16 years and the current yield to maturity...
- Q a Determine the magnitude and direction angles of the resultant force acting on A Use Fab 80 lb Fac 120 lb PA 2ft B 5 I w P 61 FAC...
- Q Determine the magnitude of resultant force of the addition of Fa and Fb Fr Fa Fb the coordina direction angles and check whether it satisfies the direction cosines additions condition...
- Q 2 5 6 7 8 S 10 From experience an airline knows that only 85 of the passengers booked for a certain flight actually show up If 8 passengers are...
- Q Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5 and 11 years old 49 randomly selected children from the school are asked their...
- Q Question 4 A store manager gathers some demographic information from the store s customers The following chart summarizes the age related information they collected Age Number of Customers 20 20...
- Q Question 27 4 You want to obtain a sample to estimate a population mean Based on previous evidence you believe the population standard deviation is approximately o 58 1 You...
- Q You roll two six sided fair dice a Let A be the event that the first die is even and the second is a 2 3 4 or 5 Round...
- Q Question 6 Complete the following probability distribution table Probability Distribution Table X 47 56 77 86 P X 0 1 0 2 0 5
- Q Suppose that you are offered the following deal You roll a six sided die If you roll a 6 you win 14 If you roll a 3 4 or 5...
- Q Complete the following probability distribution table Probability Distribution Table X 20 49 53 80 P X 0 2 0 4 0 3 Get help Written Example
- Q Round all probabilities to 4 decimal places and all dollar answers to the nearest Buttal a What is the distribution of X X N b Find the probability that the...
- Q Question 5 Probability A poll showed that 65 of Americans say they believe that statistics teachers know the true meaning of life What is the probability in percent form of...
- Q Question 16 You really struggle remembering to bring your lunch to work Each day seems to be independent as to whether you remember to bring your lunch or not The...
- Q Question 9 The table summarizes results from 990 pedestrian deaths that were caused by automobile accidents Pedestrian Deaths Driver Intoxicated Yes No Probability Pedestrian Intoxicated Yes No 55 68 232...
- Q 3 6 The gusset plate is subjected to the forces of three members Determine the tension force in member C and its angle for equilibrium The forces are concurrent at...
- Q 2 100 Determine the magnitude and coordinate direction angles of the resultant force acting at point A on the post C FAC 150 NA 4 5 3 3 m N...
- Q 72 of the 6 000 patients at a particular optometry clinic wear glasses 50 patients are randomly selected to receive a special discount on their next visit Use normal approximatio...
- Q Supposed you will receive 50 each week for 8 years How much is this worth to you today if your discount rate is 9 Round to the nearest dollar
- Q 4 Resolve F along the x and y axes and write it in vector form y 30 X F 80 N OF 80 sin 30 i 80 cos 30 j...
- Q 2 44 Determine the magnitude of the resultant force and its direction measured clockwise from the positive x axis 13 12 91 lb 40 lb Prob 2 44 30 lb
- Q 1 16 The pascal Pa is actually a very small unit of pressure To show this convert 1 Pa 1 N m to lb ft Atmosphere pressure at sea level...
- Q We consider the vector field i ii 3 U R R 7 x y z sin z 6y 2x 3 cos x Show that this vector field has a vector...
- Q Suppose R is the shaded region in the figure As an iterated integral in polar coordinates B D f 2 3 A f r cos 9 r sin 0 dr...
- Q There are 32 games played in the first round of the NCAA National Tournament Mr Keller filled out a bracket for the first round Based on his knowledge of college...
- Q The television show Law Disorder has been successful for many years That show recently had a share of 26 which means that among the TV sets in use 26 were...
- Q About 8 of the population has a particular genetic mutation 200 people are randomly selected Find the standard deviation for the number of people with the genetic mutation in such...
- Q A poll is given showing 70 are in favor of a new building project If 7 people are chosen at random what is the probability that exactly 5 of them...
- Q 9 For a normal distribution with 12 8 and a 1 35 find the probability of a P x 11 b P x 12 2 c P 10 5 x...
- Q 10 The SAT is one of two major college aptitude tests that is taken The mean composite score i 1060 with a standard deviation of 195 Assuming that the distribution...
- Q Consider the following joint pdf s for the random variables X and Y Circle the ones where X and Y are independent and cross out the other ones A f...
- Q Defaulting on a loan means failing to pay it back on time The default rate among NYU students on their student loans is 1 As a project you develop a...
- Q 8 There is a theory that people can postpone their death until after an important event To test the theory Phillips and King 1988 collected data on deaths around the...
- Q For the following please find the boundary at infinity of the region 1 z y z y 1 0 2 z y z 0 y 0 3 x y z...
- Q A used car dealer says that the mean price of a 2018 Ford Explorer is different from 18 800 You suspect this claim is incorrect and find that a random...
- Q you randomly select a card from a well shuffled standard deck of 52 cards what is the probability that the card you select is a spade or 7 Your answer...
- Q In a recent year the following statistics for electrical energy generation in a certain country were reported Billion kilowatt hours 2923 9 906 9 229 7 384 9 Source Fossil...
- Q The diameter of the shaft is normally distributed with u 0 3508 inch and o 0 0005 inc The specifications on the shaft are 0 3500 0 002 inch What...
- Q Four years ago Cody and Mary purchased a home and got a 635 372 mortgage with a 30 year amortization at 5 interest compounded semi annually and weekly payments The...
- Q farmer s house sits 4 miles due south of a river The diagram below shows the path that the farmer Lakes from his house a the river every day in...
- Q 15 20 Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point 15 x t y 1 z t 1 1...
- Q cohol rats were genetically engineere test the hypothesis that NPY deficient genotype NPY or to produce an excess of NPY NPY EX In separate experiments the twe ps were offered...
- Q 9 A couple received an inheritance of 125 000 the year they turned 46 and invested it in a fund that earns 6 3 compounded monthly If this amount is...
- Q 3 Professional curlers can slide the stone into the house centre 75 7 of the time What is the probability of a randomly selected professional curler sliding the stone into...
- Q Hector was admitted to the hospital for liver failure He has been in the hospital for eight days and is ready to go home but his condition is not getting...
- Q The term Freshman 15 refers to the claim that college students typically gain 15 lb during their freshman year at college Assume that the amounts of weight that male college...
- Q Rachel invest in the stock market 0 100 her initial investment after 10 days 10 50 after 100 days it s 100 0 how long before the value reaches 25...
- Q Data contains the prices for 48 ladies diamond rings and the carat size of their diamond stones The rings are made with gold of 20 carats purity and are each...
- Q A group on campus will make and sell bracelets to benefit a charity The pront selling will go to the charity The group members are trying to decide how much...
- Q An invasive species of beetle is infecting rhubarb plants Dr Cricket an entomologist from the Extension Offices was monitoring the population growth of the beetle on one rhubarb farm She...
- Q Question 11 20 You throw a dice with the numbers 1 to 6 twice What is the probability of never throwing the number 6 O 50 60 70
- Q Find the Fibonacci sequence Assumptions 1 Each pair of rabbits will always produce one male and one female 2 Each pair of rabbits will reproduce every month 3 Each pair...
- Q Kids with cell phones A marketing manager for a cell phone company claims that the percentage of children aged 8 12 who have cell phones differs from 50 In a...
- Q Pay Your bills A company audit showed that of 879 bills that were sent out 627 were paid on time 120 were paid up to 30 days late 63 were...
- Q Empathy The Interpersonal Reactivity Index is a survey designed to assess four different types of empathy One type of empathy called Empathetic Concern measures the tendency to feel sympathy and...
- Q bills A company audit showed that of 879 bills that were sent out 627 were paid on time 120 were paid up to 30 days late 63 were paid betwee...
- Q A mean undergraduate cost for tuition fees room and board for four year institutions was 26 489 for a recent academic year Suppose that the population standard deviation equals 3...
- Q A couple has three children Find the probability that they have at least two boys 5 8 None of these answers 1 2 3 8
- Q If two dice are rolled one time find the probability that the sum is 10 1 4 1 12 1 2 None of these answers
- Q Good credit The Fair Isaac Corporation FICO credit score is used by banks and other lenders to determine whether someone is a good credit risk Scores range from 300 to...
- Q Cholesterol An article in the Archives of Internal Medicine reported that in a sample of 246 men 71 had elevated total cholesterol levels more than 200 milligrams per deciliter In...
- Q Lottery In the New York State Numbers lottery you pay 3 and can bet that the sum of the numbers that come up is 13 The probability of winning is...
- Q Find the total return earned by the given bond Annual Interest Rate 5 9 Face Value 15 000 OA 885 OB 4 425 OC 442 500 OD 88 500 Term...
- Q 5 points Suppose you needed to test the claim that the two samples described below come from populations with the same mean Assume that the samples are independent simple random...
- Q Let M and N be two events such that P M 0 41 and P N 0 48 Do not round your responses a Determine P MUN given that M...
- Q We have a deck of 8 cards numbered from 1 to 8 Some are grey and some are white The cards numbered 5 6 and 7 are grey The cards...
- Q Bill wants to find the average height of students in the 11 grade at East High School So he will use the heights of S th students in the 11th...
- Q There are 8 acts in a talent show A comedian a dancer a guitarist a juggler a magician a pianist a singer and a violinist A talent show host randomly...
- Q A box has 3 blue and 3 green jelly beans A bag has 7 blue and 2 green jelly beans A jelly bean is selected at random from the box...
- Q The mean SAT verbal score is 419 with a standard deviation of 96 Use the Empirical Rule to determine what percent of the scores lie between 227 and 515 Assume...
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