Given the following data sets. Data Set I 41 44 45 47 47 48 51 53 58 66 Data Set II 20 37 48 48 49 50 53 61 64 70 The sample mean and sample standard deviation are as follows: Data Set I Data Set II i = 50.0 s = 14.2 i = 50.0 s = 7.4 a. Which data set has a larger variation? (justify your answer) b. Is Chebyshev' rule verified for these two data sets. (Justify your answer graphically).

Express by y, in the terms of x variables where y,=cx, and bűc = 8. %3D

Imagine you score a x=54 on an exam. What set of parameters would give you the highest grade?   A: ?= 52 and ?=2  B: ?= 50 and ?=8 C:  ?= 50 ?=2  D: ?=52 and ?=8

Gas mileage actually varies slightly with the driving speed of a car (as well as with highway vs. city driving). Suppose your car averages 29 miles per gallon on the highway if your average speed is 48 miles per hour, and it averages 26 miles per gallon on the highway if your average speed is 65 miles per hour. Answer parts (a) and (b) below. a. What is the driving time for a 2300-mile trip if you drive at an average speed of 48 miles per hour? What is the driving time at 65 miles per hour? The driving time at 48 miles per hour is hours. (Type an integer or decimal rounded to two decimal places as needed.) The driving time is at 65 miles per hour is (Round to two decimal places as needed.) b. Assume a gasoline price of $4.43 per gallon. What is the gasoline cost for a 2300-mile trip if you drive at an average speed of 48 miles per hour? What is the gasoline cost at 65 miles per hour? The gasoline cost at 48 miles per hour is $ (Round to two decimal places as needed.) hours. The…

M varies directly as n,and m = 14 when n = 7

Jane collects data from 40 elementary school students and finds that the relationship between age (x) and score on a certain test (y) is given by y=3.2x+45. What can she extrapolate about the score a 16-year old will get on the test?

Two variables have a coefficient of determination of 0.8. Explain the significance of this value.

Solve these 4 questions using the data table please