Excel:In cell B13, create a formula using the VLOOKUP function that looks up the value from cell A11 in the range A5:B7, returns
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Try this option (see the attachment). Make design according own requirements.
Note, that the description and details are under green line.
Answer: 0.030921
Note, that the description and details are under green line.
Answer: 0.030921
Answer:
Step-by-step explanation:
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Answer:
The probability that the whole package is uppgraded in less then 12 minutes is 0,1271
Step-by-step explanation:
The mean distribution for the length of the installation (in seconds) of the programs will be denoted by X. Using the Central Limit Theorem, we can assume that X is normal (it will be pretty close). The mean of X is 15 and the variance is 15, hence, the standard deviation is √15 = 3.873.
We want to find the probability that the full installation process takes less than 12 minutes = 720 seconds. Then, in average, each program should take less than 720/68 = 10.5882 seconds to install. Hence, we want to find the probability of X being less than 10.5882. For that, we will take W, the standariation of X, given by the following formula
We will work with , the cummulative distribution function of the standard Normal variable W. The values of
can be found in the attached file.
Since the density function of a standard normal random variable is symmetrical, then
Therefore, the probability that the whole package is uppgraded in less then 12 minutes is 0,1271.