The mode score on a statistics exam was 83. Which of these interpretations is correct? A.More students received an 83 than any other score. B.80 is the highest score in the class. C.No one scored below 50. D.A score of 83 was slightly below average.

please use the information on the first page to answer number 17

th Last year over 8000 students took an entrance exam at a certain state university. Tom's score was at the 55 percentile. Leila's score was at the 86 percentile. (a) Which of the following must be true about Tom's and Leila's scores? O Tom scored higher than Leila. O Both Tom and Leila scored higher than the median. O Leila answered 31 more questions correctly than Tom. O Tom's and Leila's scores were both in the bottom half of all scores. (b) Which of the following must be true about Tom's score? O Tom scored lower than about 55% of the students who took the exam. O Tom got about 55% of the questions correct. Tom scored higher than about 55% of the students who took the exam. Tom got about 55% of the questions wrong. Submit Assignme Continue iert 144 %23 4. 6. 8 R Y U H K L A. D paus V. B M alt ctri alt USE YOUR Dew de LL

A math teacher asks each student how much time they spent studying for their last math test. She then checks each student’s overall mark. Is this case an experimental study or an observational study? 1.experimental study   2.observational study

A class of students took a test. The instructor said that the 75th percentile score was 90 out of 100. What does this mean? A. 90% of the students scored 75 or more on the test. B. 75% of the students scored 90 or more on the test. C. 25% of the students scored 90 or more on the test. D. The high score in the class was (.75)(90).

The mean of 5 numbers is 20. If one number is excluded their mean is 15. Then the excluded number is O a. 20 Ob. O b. 40 О с. 5 O d. 10

Explain what each phrase means in the context of inferences for a population proportion. a. Number of successesb. Number of failures

Here are several z-scores.  Which person scored furthest from average? Ahab: Z = +1.2 Brianna: Z = -0.8 Cecilia: Z = -1.4 Darnell: Z = +0.7 Evelyn: Z = +0.2 Group of answer choices Brianna Cecilia Cannot tell from the information given Evelyn Darnell Ahab

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What is the mean for the following scores: 2, 5, 4, 1, 8? A. 3 B. 4 C. 5 D. 20