What is true about the range?   a. All values are used in its calculation.     b. Only two values are used in its calculation.    c. It can be used for nominal data.    d. It is in different units than the mean.

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You have data set withn = You add one value to the data set, x10 9 values and a mean of = 31. 42. ¿What is the mean of the expanded data set?

Data is given as per 20, 40, 55, and 70. The 20 and 40 are 25% as important as the 55. The 70 is twice as important as the 55. Find the (weighted) Mean. Your answer should be correct to 2 places after the decimal point. The Weighted Mean is ___________.

Number of Students 30 25 2 15 10 5 0 S 10 1 15 3 20 SAMSUNG 2.5 24 3 30 Grade 28 35 SUBMIT QUESTION 19 40 25 45 SAVE PROGRESS 50 55 SU

your car is more crowded than you think.  table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.