Answer:
By the Central Limit Theorem, the mean of the sampling distribution of sample means would be 5.4 years.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean 
and standard deviation 
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation 
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this problem, we have that:
The mean for the entire population is 5.4 years.
So, by the Central Limit Theorem, the mean of the sampling distribution of sample means would be 5.4 years.
Answer:
Answer:
(5
3
)
=
10
Explanation:
This is a combination problem - we don't care about the order in which the singers are selected:
C
n
,
k
=
(
n
k
)
=
n
!
(
k
!
)
(
n
−
k
)
! with n
=
population
,
k
=
picks
(
5
3
)
=
10
Step-by-step explanation:
Answer:
If you solved this, it wouldn't have a remainder. First you would solve the numbers in the parenthesis, (15 - 3), which is 12. Now it should look like, 12 ÷ 12 + 1. Next you divide 12 by 12 and that equals 1. And all you need to do now is add 1 + 1, which is 2. So your answer will be 2.
Answer = 36.0 mph
As per the question,
Actual speed of the car = 40 mph.
Speedometer has a percent error of 10%.
The error can be negative as well as positive.
If the error is negative, it means speedometer is showing less speed than actual speed= - 10%
10 % of 40 = 4
speed shown by speedometer = 40 - (10% of 40) = 36 mph
If the error is positive, it means speedometer is showing more speed than actual speed = +10%
speed shown by speedometer = 40 + ( 10% of 40) = 44 mph
as per the given options, correct option is 36.0 mph
1. QP = DU
2x + 7 = 26
2x = 26-7
2x = 19
x = 19/2
x =9.5
2. m<3 = m<2
16x -12 =52
16x = 52+12
16x = 64
x = 64/12
x = 5.33
4.m<2 + m<6 =90
70-4x + 18x -8 = 90
14x + 62 =90
14x = 90 -62
14x= 28
x = 28/14
x=2
5. 5x + 1 =42
5x = 41
x = 41/5
x = 8.2
