The answer is X is greater than -2! <3
Answer:
The bulbs should be replaced each 1060.5 days.
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:
How often should the bulbs be replaced so that no more than 1% burn out between replacement periods?
This is the first percentile, that is, the value of X when Z has a pvalue of 0.01. So X when Z = -2.325.
The bulbs should be replaced each 1060.5 days.
Answer:
Step-by-step explanation:
The details that complete the question are:
and
Required
Determine how far the ball travelled
Distance is calculated using:
Substitute values for x's and y's
<em>Hence, the ball travelled a distance of 63.717 units</em>
You can use estimation.
80×130=10,400
Clearly 10,400 and 94 are way off.
The answer to your question is 11