Compare 4 and -2. Which of the following is true? A. 14<1-2and 4 <-2
B. 141 = 1-2 and 4 >-2
C. 141 <1-21 and 4> -2
D. 41 > 1-2 and 4>-2

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Step-by-step explanation:

4.01% probability that the battery will break down during the warranty period

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:

a. What is the probability that the battery will break down during the warranty period

Warranty of 2 years = 24 months. So this is the pvalue of Z when X = 24.

has a pvalue of 0.0401

4.01% probability that the battery will break down during the warranty period