Ten percent of the world's population is left-handed. A researcher claims that left-handed individuals are more creative than those who aren't left- handed. In order to support his claim, he takes a sample of 900 artists and finds that 11% of them are left-handed. a. Find the mean of ê, where is the proportion of left-handed individuals in a random sample of 900. b. Find the standard deviation of p. c. Compute an approximation for p (p20.11), which is the probability that there will be 11% or more left-handed people in a random sample of 900. Round your answer to four decimal places. (If necessary, consult a list of formulas.) X 5 ?

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

3,750 deer

step-by-step explanation:

1,500 is 15 times larger than 100

lets make 250 15 times larger.

3750 deer

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92