Answer:
d. No, the conditions for normality have not been met because the sample size for the pennies is not large enough and no information is given about the distributions of the populations.
Step-by-step explanation:
In this example, we learn that the sample taken of pennies was of 25, while the sample of quarters was of 35. According to the central limit theorem, a sample must be equal to or larger than 30 for the theorem to hold. The theorem states that when random variables are added, they tend towards a normal distribution even if the original variables themselves are not normally distributed. In this question, the sample of pennies is not large enough for the theorem to hold. On top of this, we have no information about the distribution of the populations. Therefore, the conditions for normality have not been met.
2 x minus 5 y = negative 5. y = two-fifths x + 1.
Answer:
i hope this helps :) i answered the other one but they deleted it
Step-by-step explanation:
bottom left = 55
middle = 75
right = 56
top should be 79
Answer:
1. x=-11
2. x=8
Step-by-step explanation:
-2x+6=28
Subtract 6 from each side
-2x+6-6 = 28-6
-2x = 22
Divide by -2
-2x/-2 = 22/-2
x = -11
-18=-3x+6
Subtract 6 from each side
-18 -6 = -3x +6-6
-24 = -3x
Divide by -3
-24/-3 = -3x/-3
8 =x
Answer:
5 out of 12
Step-by-step explanation:
