1. The following stem-and leaf plot shows scores on a Statistics final exam. 219 3 38 4 3688 5 116 6 14678 7|7889 81234566699 9 001347 10|0 How many students scored above the 80th percentile? Your answer should be a whole number.
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- What is the actual value of the medianAnswer the questions showing step by stepThe data set below represents the ages of 36 executives. Find the percentile that corresponds to an age of 65 years old. 30 30 31 32 33 33 33 35 35 37 37 38 38 39 39 41 42 42 44 45 46 46 46 47 47 48 48 51 52 59 62 63 65 65 66 66 Percentile of 65 = (Round to the nearest integer as needed.)
- 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…3. The following is the frequency distribution of the scores of students in a Mathematics Test. Classes F 65 – 69 12 70 – 74 18 75 – 79 20 80 – 84 15 85 – 89 10 Find the mean, median and mode of the scores.Please solve the Statistics Question in 30 minutes with an explanation.
- How many classes are there and what is the class width?Find the mean, median, and mode(s) of the data in the following stem-and-leaf plot. The leaf represents the ones digit. 2 1 46 Part 1 of 3 Find the mean. Round your answer to one decimal place, if necessary. Mean: X Part 2 of 3 Find the median. Round your answer to one decimal place, if necessary. Median: S Part 3 of 3 Find the mode(s). If there is more than one, separate them with commas. O There is no mode. O There is at least one mode. 00.... Mode(s): 4799 X Ś EspañolHi, please help me solve, thank you!
- ts eBook Print References a. 100 m dash times (n = 6 top runners): b. Number of children (n = 13 families): c. Number of cars in driveway (n = 8 homes): Click here for the Excel Data File (a) Find the mean, median, and mode for each data set. (Round your answers to 2 decimal places.) 100 m dash times Number of children Number of cars in driveway Mean 100 m dash times Number of children Number of cars in driveway Median 9.87, 9.98, 10.02, 10.15, 10.36, 10.36 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 6 0, 0, 1, 1, 2, 2, 3, 5 Mode (b) Which of these three measures is the weakest indicator of a "typical" data value?Approximate the mean of the grouped data. Round to the nearest whole number. Phone calls (per day) Frequency 8-11 26 12-15 25 16-19 44 20-23 13 24-27 38 ... Question content area right Part 1 A.16 16 B.29 29 C.18 18 D.17 17 E.1939 psychology students took a standardized test. The scores are summarized in the two tables below. Classes Frequency Relative Frequency 140 - 149 13 150 - 159 11 160 - 169 15 Classes Cumulative Frequency Cumulative Relative Frequency 140 - 149 13 150 - 159 160 - 169 What are the missing values?