Answer:
The correct option is C) 21.1 and 0.68
Step-by-step explanation:
Consider the provided information.
The mean composite score was 21.1 with a standard deviation of 4.8. The ACT composite score ranges from 1 to 36, with higher scores indicating greater achievement in high school.
Therefore μ = 21.1 and σ = 4.8
It is given that the sample of 50 students;
Thus, sample size ( n ) = 50
According to the central limit theorem,

Therefore



Hence, the correct option is C) 21.1 and 0.68
Answer:
A 1 1/12
Step-by-step explanation:
just add 4 and 9 you get 13
Answer:
1) $14, 2) please see explanation below 3) please see explanation below
Step-by-step explanation:
1.
a) about $15-$1
b) Higher, because the estimate lowered the price that is being subtracted.
c) 15-1=14
Pedro has about $14 left over.
2.
a) 3 is the closes because to solve this question you divide 100.8 by 35. The product is 2.88, thus supporting that 3 is the closes answer.
b) 8 is the closes because to solve this question you divide 49.2oz by 6. The product is 8.2.
c) 0.04 is the closes because to solve this question you divide 20 by 0.78, resulting in 0.039.
3.
a) 2.49 times 6 = 14.88
His parents spent $14.88 on goodie bags
b) 150 divided by 8 = 18.75
His parents spent $18.75 per hour for the bounce house.
c) 14.88 + 18.75 = 33.63 and 182.53 - 33.63 = 148.90
His parents spent $148.90 on his birthday party excluding the goodie bags and bounce house
HOPE THIS HELPS <33333
-Silver
Answer:
0.3085,0.2417,0.0045
Step-by-step explanation:
Given that X, the amount of money spent at shopping centers between 4 P.M. and 6 P.M. on Sundays has a normal distribution with mean $85 and with a standard deviation of $20.
X is N(85, 20)
To convert into std normal variate we use the following formula

a) the probability that he has spent more than $95 at the mall
=
b. the probability that he has spent between $95 and $115 at the mall
=
c. If two shoppers are randomly selected, what is the probability that both shoppers have spent more than $115 at the mall
=product of two probabilities since independent
= 
Answer: 24 cm
Step-by-step explanation:

It is multiplied by 4 because a square has 4 equal sides and 4 equal angles.
P = 6 * 4 = 24