For each of the questions below, a histogram is described.Indicate in each case whether, in view of the Central LimitTheorem, you can be confident that the histogram would look likeapproximately a bell-shaped (normal) curve, and give a briefexplanation why (one sentence is probably sufficient).
1. The price of one gallon of gasoline at a particular gasstation is recorded every day of the year, and the 365 values areplotted in a histogram.
2. Two hundred students in a statistics class each flip a coin40 times and record the number of heads. The numbers of heads areplotted in a histogram.
3. Two hundred students in a statistics each roll a die 60 timesand record the sum of the numbers they got on the 60 rolls. Theymake a histogram of the 200 sums.
4. One thousand randomly chosen people report their annualsalaries, and these salaries are plotted in a histogram.
5. The day before an election, fifty different pollingorganizations each sample 2000 people and record the percentage whosay they will vote for the Democratic candidate. The 50 values areplotted in a histogram.
6. The fifty polling organizations also record the average ageof the 2000 people in their sample, and the 50 averages are plottedin a histogram.
7. One hundred batteries are tested, and the lifetimes of thebatteries are plotted in a histogram.
