An airline charges $25 for the first bag, $35 for the second bag 54% have no checked baggage,  34% one piece of baggage  12% two pieces  The standard deviation of baggage related revenue is

one z-score unit is equivalent to ______ of the distribution.  a. the variance b. the range c. the standard deviation d. the mean e. the correlation coefficient

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Find the range and standard deviation of the set of data.   31, 25, 25, 23, 26,

R A veterinarian recorded how many kittens were born in each litter. This data is summarized in the L histogram below. (Note: The last class actually represents "7 or more kittens," not just 7 kittens.) 14 12 10- 8- 6- 4 1 2 3 4 7 8 # of kittens What is the frequency of litters having at most 3 kittens? ans = Fe Ro 1 FEB 18 P. W MacBook Air 20 000 esc F5 F6 F2 F3 F4 F1 & ! @ 1 2 4 5 Q W R %24 # 3 6 2. Frequency

Determine the range and standard deviation of the prices of camping tents shown below. $109, $58, $82, $58, $211, $250, $58, $101, $144 0

Find the range and standard deviation of the set of data. 4, 7, 4, 7, 7, 9, 11 O

Data Set 1: 2,2,3,4,4 Solve for the RANGE.Solve for the VARIANCESolve for the STANDARD DEVIATION.Solve for COEFFICIENT OF VARIATION.

Anna sells five different items online. On average, Anna sells 23 items per day and the selling price for each item is listed below. Items Price($) Frequency A 4.1 8 B 5.4 8 C 7.6 1 D 6.8 3 E 7.8 3 Total 31.7 23 Find the weighted mean of the selling price and give your answer in 2 d.p.