The following table gives the frequency distribution of test scores for a math class of 30 students.
The lower boundary of the first class is:
The following table gives the frequency distribution of test scores for a math class of 30 students.
The following frequency distribution represents the scores on a math test. Find the class midpoint of scores for the interval 40-59. Number of Scores Students 0-19 20-39 40-59 60-79 80-99 O A. 50.5 O B. 49,0 OC. 48.5 O D. 49.5
The following frequency distribution analyzes the scores on a math test. Find the class midpoint of scores interval 40-59.
Consider the following frequency table representing the scores on a test. Scores on a Test Class Frequency 30–39 9 40–49 13 50–59 12 60–69 8 70–79 6 Step 3 of 5 : Determine the class width of each class.
Consider the following frequency table representing the distribution of hours students spend on homework in a week. Determine the lower class boundary for the fourth class
7. The result of test in a math class is summarized in a frequency distribution table below. (a) (6 points) Complete the frequency distribution table below: Letter Class Class Class Cumulative Percentage Grade Limits Midpoint Frequency Frequency Frequency D 58-68 10 с 69-79 12 B 80-90 24 A 91-101 4 (b) (4 points) Find Sof the frequency distribution table in reduced fraction by using class midpoints and class frequecies. (b) (c) (5 points) Draw its pie chart graph using letter...
7. The result of test in a math class is summarized in a frequency distribution table below. (a) (6 points) Complete the frequency distribution table below: Letter Class Class Class Cumulative Percentage Grade Limits Midpoint Frequency Frequency Frequency D 58-68 10 с 69-79 12 B 80-90 24 A 91-101 4 (b) (4 points) Find Sof the frequency distribution table in reduced fraction by using class midpoints and class frequecies. (b) (c) (5 points) Draw its pie chart graph using letter...
Consider the following frequency table representing the distribution of hours students watch tv in a week. Hours Students Watch TV in a Week Class Frequency 15 9-15 16-22 6 23-29 30-36 7 37-43 8 Copy Data Step 2 of 2: Determine the upper class boundary for the first class.
The following frequency distribution analyzes the scores on a math test. A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogram for the systolic blood pressure readings for those people aged between 25 and 40. The blood pressure readings were given to the nearest whole number: Number of 2 6 s tuden ts CoreS 40-59 60-25 76-82 83-94 95-99 Find the lower class boundary of the last class Relative Frequency 15 0.35...
Consider the following frequency table representing the scores on a test. Scores on a Test Class Frequency 15 20-39 40-59 10 60-79 80-99 100-119 Next Copy Data Prev Step 5 of s: Determine the number of scores between 19,5 and 99.5
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use a =0.01. Complete parts (a) through (e). Class boundaries 49.5-58.5 58.5-67.5 Frequency, f 19 62 D 67.5-76.5 81 76.5-85.5 33 85.5-94.5 5 Using a chi-square goodness-of-fit test, you can decide, with some degree of certainty, whether a variable is normally distributed. In all chi-square tests for normality, the null and alternative hypotheses are as follows. Ho: The test scores have a normal distribution....