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What is the value of the observation

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Reference no: EM132386789

1. Christian D'Angelo has scores of 68, 65, 75, and 78 on his statistics tests. Find the scores he can make on his final exam to receive a C in the course .The final exam counts as two test scores and C is received if the final course grade is from 70 to 79.

2.  If the z-score for an observation is -1.22, the mean of the data set is 83, and the variance is 84, what is the value of the observation?

3. Todd Booth, an avid jogger, kept detailed records of the number of miles he ran per week during the past year. The frequency distribution in figure below summarizes his records. Find the mean, median, and mode of the number of miles per week that Todd ran.

Miles Run per Week                             Number of Weeks

0                                                                                                                                                                4

1                                                                                                                                                                5

2                                                                                                                                                              10

3                                                                                                                                                                9

4                                                                                                                                                              10

5                                                                                                                                                                7

6                                                                                                                                                                4

7                                                                                                                                                               3

----------------------------------------------------------------------

a.  Mean number of miles  =

b.  Median number of miles  =

c.   Mode  number of miles  =

Reference no: EM132386789

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