Mathematics, 06.09.2019 19:30 porkchop8607
Set x consists of 100 numbers. the average (arithmetic mean) of set x is 10, and the standard deviation is 4.6. which of the following two numbers, when added to set x, will decrease the set’s standard deviation by the greatest amount?
a. -100 and -100
b. -10 and -10
c. 0 and 0
d. 0 and 20
e. 10 and 10
Answers: 2
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
Mathematics, 21.06.2019 21:50
(x-5)1/2+5=2 what is possible solution of this equation
Answers: 1
Mathematics, 21.06.2019 22:30
Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb
Answers: 1
Set x consists of 100 numbers. the average (arithmetic mean) of set x is 10, and the standard deviat...
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