Answer:
A
Step-by-step explanation:
test the constant 1/2 + (1/2)*(-3) = -2/2 = -1
Answer9 stainless steel bowls
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What we know: <span>Malcolm bought 7 plastic bowls and spent a total of 136.50 dollars on prizes
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We would subtract:
136.50 - 42 = 94.5
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After determining the price of the stainless steel bowls, we would then divide:
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Answer:
34.5%
Step-by-step explanation:
When the distribution is normal, we use 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 question, we have that:
What percentage of the books last more than 10 years?
As a proportion, this is 1 subtracted by the pvalue of Z when X = 10. So
has a pvalue of 0.655
1 - 0.655 = 0.345
So
34.5% of the books last more than 10 years.