Statistical literacy Study guides, Revision notes & Summaries

MAT 232 Week 1 5 Assignments 2023 - Statistical Literacy. A frequency table of grades has five classes (A, B, C, D, F) with frequencies of 44, 10, 14, 55, and 22 respectively. Using percentages, what are the relative frequencies of the five classes? Grade Frequency Relative frequency A 4 11.43% B 10 28.57% C 14 40.00% D 5 14.29% F 2 5.71% (Round to two decimal places as needed.) A frequency table of grades has five classes (A, B, C, D, and F) with frequencies of 3, 12, 18, 6, and 2 res...

MAT 232 Statistical Literacy Week 2 Assignment 2023. Twenty-five people, consisting of a statistics professor and her students, are to measure the length of a room to the nearest tenth of a millimeter. Assume that everyone uses the same well-calibrated measuring device, such as a tape measure. Complete parts a through d below. a. All 25 measurements are not likely to be exactly the same; thus, the measurements will contain some sources of error. Are these errors systematic or random? Explain...

MAT 232 Week 4 Assignment Review 2023 - Statistical Literacy. A study was conducted that resulted in the following relative frequency histogram. Determine whether or not the histogram indicates that a normal distribution could be used as a model for the variable. 1,000 2,000 3,000 4,000 5,000 0 0.2 0.4 Calories Consumed per Day Relative Frequency Choose the correct answer below. A. as a model for the variable. The histogram is not symmetric around a single peak and is not bell -shape...

MAT 232 Statistical Literacy Week 5 Assignment 2023. For the following pair of variables, state whether you believe the two variables are correlated. If you believe they are correlated, state whether the correlation is positive or negative. Explain your reasoning. The age of the pilot and the altitude of the aircraft Choose the correct answer below. A. Positive correlation because older pilots tend to fly at higher altitudes B. The variables are not correlated. C. Negative correlation beca...

MAT 232 Week 1 5 Assignments 2023 | Statistical Literacy. In a poll, 1,001 adults in a country were asked whether they favor or oppose the use of "federal tax dollars to fund medical research using stem cells obtained from human embryos." Among the respondents, 47% said that they were in favor. Describe the statistical study. What is the population in the given problem? Choose the correct answer below. C. All adults in the country Identify the sample for the given problem. Choose the corr...

MAT 232 Week 1 Assignment 2023 - Statistical Literacy. Which of the following mathematical statements are true? Select all that apply. A. 1 + 2 = 2 B. 1 + 1 = 2 C. 2 − 2 = 1 D. 1 • 1 = 1 E. 1 • 2 = 2 Did you notice?  Questions like the one above use a square button for each choice, and you can choose multiple answers from the list for each attempt. Some questions require you to choose an answer from a dropdown list. Click the dropdown list below to view the choices, and then c...

MAT232: Statistical Literacy Week 2 Assignment 2023. State whether the data described below are discrete or continuous, and explain why. The number of car accidents on a given stretch of highway each year Choose the correct answer below. A. The data are continuous because the data can only take on specific values. B. The data are discrete because the data can only take on specific values. C. The data are continuous because the data can take on any value in an interval . D. The data are dis...

MAT 232: Statistical Literacy Assignment: Week 3 MyStatLab Homework 2023. Find the mean area and median area for these states. The mean is square miles. (Round to the nearest integer as needed.) The median is square miles. b. Which state is an outlier on the high end? If you eliminate this state, what are the new mean and median areas for this data set? State 2 is an outlier on the high end. The new mean is 81617 square miles. (Round to the nearest integer as needed.) The new median ...

MAT 232 Week 4 Assignment Review 2023 - Statistical Literacy. State whether one would expect the data set described below to be normally distributed. Explain why or why not. The measured blood sugar levels of 5,000 randomly selected adult women A. One would not expect this data set to be normally distributed. There will be many adult women with very low blood sugar levels, but only a few with high blood sugar levels, so the distribution will not be symmetric. B. One would expect this data s...

MAT232: Statistical Literacy Assignment Week 3 MyStatLab Homework 2023. Actual times (in seconds) recorded when statistics students participated in an experiment to test their ability to determine when one minute (60 seconds) had passed are shown below. Find the mean, median, and mode of the listed numbers. 53 51 73 63 67 60 48 48             The mean is 57.9 sec. (Round to the nearest tenth as needed.) The median is 56.5 sec. (Round to the nearest tenth as needed.) What is(ar...