Exam 5: Exploring Data: Distributions

Below is a histogram of car prices on a used-car lot. An advertisement for the lot says the average price of a car for sale is $12,000. Could the advertisement be true? Why or why not?

If the values in a data set are all multiplied by 1, what happens to the standard deviation?

Given the histogram below for a set of data, which statement is true?

Given the set of data below, find the range. $25,16,50,19,42,37$

The length of students' college careers at Anytown University is known to be normally distributed, with a mean length of 5.5 years and a standard deviation of 1.75 years. What percent of students have college careers lasting between 2 and 9 years?

Given the histogram below, which statement is true?

Given the set of data below, find the standard deviation. $25,16,50,19,42,37$

Use the following information to answer the following Questions: Below are the ages of 15 students in a college class. 27, 50, 33, 25, 86, 25, 85, 31, 37, 44, 20, 36, 59, 34, 28 -What is the mean age?

Use the following data sets to answer the questions: Set A: 1, 2, 3, 4 Set B: 1, 1, 4, 7 Set C: 0, 5, 5, 10 Set D: 6, 6, 6, 6 -Which data set has the largest standard deviation?

After computing the standard deviation for a set of measurements, you notice your answer is negative. Is this possible?

Given the set of data below, find the mean. $2,4,4,5,6,9$

Refer to this stemplot to answer the following questions: 0 1234 1 03 2 14669 3 4 2789 -Find the five-number summary for this data set.

Which of the following statements about measures of the spread of data is true?

Use the following data sets to answer the questions: Set A: 1, 2, 3, 4 Set B: 1, 1, 4, 7 Set C: 0, 5, 5, 10 Set D: 6, 6, 6, 6 -Which data set has standard deviation 0?

Below is a list of gas mileage ratings for selected passenger cars in miles per gallon: 53, 43, 89, 41, 85, 86, 91, 92, 95, 94, 86, 102, 114, 30, 123 Choose the correct histogram of the data.

Given the histogram below for a set of data, which of the following statements is true?

Given the histogram below for a set of data, which statement is true?

Given the set of data below, find the standard deviation. $2,4,4,5,6,9$

Use the following information to answer the Questions: Below is a list of the number of dogs owned by families in a particular neighborhood. 0, 0, 2, 1, 0, 1, 0, 4, 0, 1 -What is the standard deviation for these data?

Below is a list of gas mileage ratings for selected passenger cars in miles per gallon: 53, 43, 89, 41, 85, 86, 91, 92, 95, 94, 86, 102, 114, 30, 123 Make a boxplot to represent these data.