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Verdich [7]
3 years ago
11

A survey asked eight students about weekly reading hours and whether they play musical instruments. The table shows the results

of the survey. Weekly Reading Hours Hours of Reading if Student Plays an Instrument Hours of Reading if Student Does Not Play an Instrument Student 1 16 Student 2 18 Student 3 15 Student 4 15 Student 5 2 Student 6 2 Student 7 4 Student 8 8 Which statements about the data sets are true? Check all that apply. The data for the group that plays an instrument are more spread out than the data for the group that did not play an instrument. The data for the group that plays an instrument are more clustered around the mean than the data for the group that did not play an instrument. The mean absolute deviation for students who play an instrument is 1. The data for the group that does not play an instrument are more spread out than the data for the group that does play an instrument The mean absolute deviation for the group of students who do not play an instrument is 2. The data for the group that does not play an instrument are more clustered around the mean than the data for the group that does play an instrument.
Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0

Answer:

B C D E

Step-by-step explanation:

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The best player on a basketball team makes 80​% of all free throws. The​ second-best player makes 75​% of all free throws. The​
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Answer:

Expected number of free throws in 60 attempts:

        Best player = 48

        2nd best player = 45

        3rd best player = 42

Step-by-step explanation:

Solution:-

- The probability that best player makes free throw, p1 = 0.8

- The probability that second-best player makes free throw, p2 = 0.75

- The probability that third-best player makes free throw, p3 = 0.70

- Total number of attempts made in free throws, n = 60.

- The estimated number of free throws that any player makes is defined by:

                      E ( Xi ) = n*pi

Where,           Xi = Player rank

                      pi = Player rank probability

- Expected value for best player making the free throws would be:

                    E (X1) = n*p1

                              = 60*0.8

                              = 48 free throws

- Expected value for second-best player making the free throws would be:

                    E (X2) = n*p2

                              = 60*0.75

                              = 45 free throws

- Expected value for third-best player making the free throws would be:

                    E (X3) = n*p3

                              = 60*0.70

                              = 42 free throws

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3 years ago
How to do proof problems in geometry
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Nana76 [90]

Answer:

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Step-by-step explanation:

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Find the range.<br> 3 –9 7 –1 5 –4 2
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Step-by-step explanation:

The lowest number is -9 and the highest is 7. the difference between those is 16.

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