A veterinarian recorded how many kittens were born in each litter. This data is summarized in the histogram below. (Note: The last class actually represents "7 or more kittens," not just 7 kittens.) 14 12- 10- 8- 6- 4 2 4. 6 7 8 # of kittens What is the frequency of litters having at most 3 kittens? ans = Frequency

Data Set: 3, 7, 11, 13, 16 What is the mean of this data set?

Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…

for the dataset c(1,2,2,2,4,5,6,6,7,8,9,9), what is the 75% or .75 quantile?

Biologists caught and measured 215 fish from the northern Atlantic Ocean. The lengths of the fish (in cm) are summarized in the histogram. 40 35 30 25 20 15 10 5 15 30 45 60 75 90 105 120 length of fish (cm) About what percentage of fish caught in this study had lengths between 45 cm and 75 cm? % Frequency

K A university conducted a survey of 387 undergraduate students regarding satisfaction with student government. Results of the survey are shown in the table by class rank. Complete parts (a) through (d) below. Click the icon to view the table. 美 Data table Satisfied Neutral Not satisfied Total Freshman Sophomore Junior Senior 51 48 62 59 28 20 18 13 23 21 18 26 102 89 98 98 Total D₁ 220 79 88 387

Here are the scores for 15 students on a math test. 89, 86, 88, 92, 94, 91, 77, 75, 82, 93, 81, 87, 95, 73, 72 Draw the histogram for these data. Frequency 5+ 4+ 3+ 1+ 72-77 78-83 84-89 90-95 Scores

Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 5     1 9     2 6     3 4     4 1     Table 2.67 Construct a histogram of the data. Complete the columns of the chart.

The two-way table given shows the results from a survey of pet owners.   Owns a Dog Does Not Own a Dog Total Owns a Cat 54 21 75 Does Not Own a Cat 81 39 120 Total 135 60 195 Does the data show an association between owning a dog and owning a cat

What do degrees of freedom for degree of freedom within reflect?