If she paid for 12 months for each answer the totals would be.
A= 528
B= 576
C= 624
D= 648
Answer:
No solution
Step-by-step explanation:
What you have to do is think of two numbers that when times together it equals -1 and when added together it equals -1.
There is no number that can come out to that, so your answer is:
no solution
Answer:
3,520
Step-by-step explanation:
You already know how many yards are in one mile, so you just multiply 1,760 by 2 because its asking how many yards are in 2 miles.
Answer:
95.86% probability that the sample proportion will differ from the population proportion by less than 3%
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
For a proportion, we have that:
What is the probability that the sample proportion will differ from the population proportion by less than 3%
This is the pvalue of Z when X = 0.07 + 0.03 = 0.1 subtracted by the pvalue of Z when X = 0.07 - 0.03 = 0.04. So
X = 0.1
has a pvalue of 0.9793
X = 0.04
has a pvalue of 0.0207
0.9793 - 0.0207 = 0.9586
95.86% probability that the sample proportion will differ from the population proportion by less than 3%