<h3>
Answer: A) 3/10</h3>
This is the probability of winning 0 dollars, aka not winning any cash prizes. So all we do is write down the probability value found in the first column.
side note: you could add all the other probabilities to get 1/5+1/10+2/5 = 2/10+1/10+4/10 = 7/10, then subtract that from 1 to get 1-7/10 = 10/10-7/10 = 3/10. Though this is a bit more work than needed in this problem.
The answers would be 11, if you plug it in it would be 5(11)-7=48
Answer:
not sure if the top is negative or positive but;;
if the top is negative then the answer is F
Step-by-step explanation:
Answer:
0.7422 = 74.22% of scores are above 74.
Step-by-step explanation:
Problems of normally distributed samples can be 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:

Calculate the proportion of scores above 74.
This is 1 subtracted by the pvalue of Z when X = 74. So



has a pvalue of 0.2578
So 1-0.2578 = 0.7422 = 74.22% of scores are above 74.
Answer:
36cm
Step-by-step explanation:
The scale is 3 to 1, so the poster size is 3 times larger than the actual thing.