Exam 5: Exploring Data: Distributions

The annual income of residents in a certain county is normally distributed, with a mean of $42,000 and a standard deviation of $10,000. What is the probability that a randomly chosen resident has income over $52,000?

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 mean?

Below are the numbers of accidents occurring at a certain corner on 15 consecutive days. Find the five-number summary of the data. $0,1,3,4,5,2,2,6,7,2,0,1,3,6,3$

Below are listed the ages (in months) of children at a daycare center. Choose the correct stemplot of the data. 18, 24, 25, 35, 37, 42, 47, 48, 48, 58

In the list of five measurements shown below, one is blurred. Supply a fifth value that would make the median 8. 8 5 10 3 \#

Given the stemplot below, which description is true? 0 1 1 89 2 0122 3 0023

Below are the heights (in inches) of students in a third-grade class. Find the mean height. $39,37,48,49,40,42,48,53,47,42,49,51,52,45,47,48$

The shelf life of a battery produced by one major company is known to be normally distributed, with a mean life of 3.5 years and a standard deviation of 0.75 years. What percent of batteries last between 1.25 and 5.75 years?

Below are the ages of students attending an art exhibit. Find the mean age of the students. 11, 11, 12, 12, 13, 1 3, 13, 13, 13, 14, 14, 15, 15, 15, 16, 16, 17, 17, 18

Consider the following data set: 1, 1, 3, 3, 6, 6, 6, 9, 11, 11 What is the relative frequency of the value 6?

The scores of students on a standardized test form a normal distribution with a mean score of 500 and a standard deviation of 100. Between what two values do the middle 50% of scores lie?

Below is a histogram of the ages of people attending a concert. Which statement is true?

The scores of students on a standardized test are normally distributed with a mean of 300 and a standard deviation of 40. Between what two values do 99.7% of the test scores lie?

In the list of five measurements shown below, one is blurred. What MUST this value be, if the mean of the five measurements is 7? 8 5 10 3 \#

Below are the ages of six patients seen by a pediatrician on one day. Find the standard deviation of the ages. 3, 6, 7, 9, 15, 20

Which of the following statements about measures of the center of a distribution of data is true?

Use the following information to answer the Questions: Below are the numbers of pages in each of seven chapters of a textbook. 14, 14, 20, 38, 47, 48, 57 -What is the range?

Refer to the following frequency distribution to answer the questions: Value 1 2 3 6 Relative frequency 25\% 25\% 15\% 35\% -If the data set contains 20 values, how many of them are 3?

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 does NOT have a symmetric distribution?

Given the histogram below, which statement is true?