Answer:
it is not necessary to confirm that the sample data appear to be from a population with a normal distribution;
D. Because the sample size of 50 is greater than 30, it can be assumed that the sample mean is from a population with a normal distribution
Step-by-step explanation:
Normal distribution which is otherwise known as the Gaussian distribution, it is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.
The arithmetic mean or average; is the sum of a collection of numbers divided by the total numbers in the collection.
Answer:
56x-42x+63
Step-by-step explanation:
The standard form is 20000 + 1000 + 70
#1 is 60\100 which can be reduced to 3\5
Answer:
1 in 10, or 10% because there is a 90% chance she will choose the wrong number.
