Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 1: Q 32. (page 27)

Python eggsRefer to Exercise 26.

(a) Of the eggs that hatched, what proportion were randomly assigned to hot water?

(b) Of the eggs that were randomly assigned to hot water, what percent hatched?

(c) The segmented bar graph displays the distribution of hatching status by water temperature. Describe what this graph reveals about the association between these two variables for the python eggs in this experiment.

Short Answer

Expert verified

Part (a) .5814

Part (b) 72.12%

Part (c) As the temperature rises, eggs appear to be more likely to hatch. We notice that the majority of the eggs hatch at each temperature.

Step by step solution

01

Part (a) Step 1. Given information.

The given table is:

02

Part (a) Step 2. Find the proportion of hatched eggs that were randomly assigned to hot water.

The total of eggs that were hatched are: 129

From them, 75 eggs are assigned to hot water.

Therefore, the required proportion is:

75129=2543or≈0.5814

03

Part (b) Step 1. Find the percent of hatched eggs from the eggs that were randomly assigned hot water.

The total of eggs that were assigned hot water: 104

From them, 75 eggs are hatched.

Therefore, the required proportion is:

75104=2343or72.12%

04

Part (c) Step 1.  Describe the association between these two variables from the given graph.

When comparing the green sections of the bars of the bar graph, we see that the green section is smallest for "Low" and greatest for "High". This suggests that eggs are more likely to hatch as the temperature rises.

Because the green area of each bar is larger than the red section of the bar, the majority of the eggs hatch at each temperature.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Strong paper towels In commercials for Bounty paper towels, the manufacturer claims that they are the “quicker picker-upper,” but are they also the stronger picker-upper? Two of Mr. Tabor’s statistics students, Wesley and Maverick, decided to find out. They selected a random sample of 30 Bounty paper towels and a random sample of 30 generic paper towels and measured their strength when wet. To do this, they uniformly soaked each paper towel with 4 ounces of water, held two opposite edges of the paper towel, and counted how many quarters each paper towel could hold until ripping, alternating brands. The data are displayed in the relative frequency histograms. Compare the distributions

Part (a). Would it be appropriate to use frequency histograms instead of relative frequency histograms in this setting? Explain why or why not.

Part (b). Compare the distributions of number of quarters until breaking for the two paper towel brands

Multiple Choice Select the best answer.

Exercises 9 and 10 refer to the following setting. At the Census Bureau website www.census.gov, you can view detailed data collected by the American Community Survey.

The following table includes data for 10 people chosen at random from the more than 1 million people in households contacted by the survey. “School” gives the highest level of education completed.

The individuals in this data set are

(a) households.

(b) people.

(c) adults.

(d) 120 variables.

(e) columns

DRP test scores There are many ways to measure the reading ability of children. One frequently used test is the Degree of Reading Power (DRP). In a research study on third grade students, the DRP was administered to 44 students. Their scores were as follows.

Make a histogram to display the data. Write a few sentences describing the distribution of DRP scores.

Getting older How old is the oldest person you know? Prudential Insurance Company asked 400 people to place a blue sticker on a huge wall next to the age of the oldest person they have ever known. An image of the graph is shown here. Describe the shape of the distribution.

Risks of playing soccer (1.1) A study in Sweden looked at former elite soccer players, people who had played soccer but not at the elite level, and people of the same age who did not play soccer. Here is a two-way table that classifies these individuals by whether or not they had arthritis of the hip or knee by their mid-fifties:

Part (a). What percent of the people in this study were elite soccer players? What percent of the people in this study developed arthritis?

Part (b). What percent of the elite soccer players developed arthritis? What percent of those who got arthritis were elite soccer players?

Part (c). Researchers suspected that the more serious soccer players were more likely to develop arthritis later in life. Do the data confirm this suspicion? Calculate appropriate percentages to support your answer.
See all solutions

Recommended explanations on Math Textbooks

Mechanics Maths

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Probability and Statistics

Read Explanation

Pure Maths

Read Explanation

Discrete Mathematics

Read Explanation

Geometry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free