<span>In a normal distribution 68.27% of the values are within one standard deviation from the mean, 95.5% of the values are within two standard deviations from the mean, and 99.7 % of the values are within three standard deviations of the mean
With that you have the answer to the three questions:
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<span>a. significantly high (or at least 2 standard deviations above the mean).
99.5% of the values are within 2 standard deviations from the mean, half of 100% - 95.5% = 4.5% / 2 = 2.25% are above the mean, so the answer is 2.25%
b. significantly low (or at least 2 standard deviations below the mean).
The other half are below 2 standard deviations, so the answer is 2.25%
c. not significant (or less than 2 standard deviations away from the mean).
As said, 95.5% are within the band of two standard deviations from the mean, so the answer is 95.5%.
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Answer:
short
Step-by-step explanation:
Answer:
1.6
Step-by-step explanation:
5/8 = .625
1/.625 = 1.6
.625* 1.6 = 1
Answer:
$165
Step-by-step explanation:
Rachel works for a clothing store. She is paid $150 every week plus a 10% commission on any clothes that she sells.
Let's find the total amount she is being paid per week
Amount paid originally = $150
Percentage Commission = 10%
Commission = 10% of 150
Commission = 0.1×150
Commission = $15
Total amount paid = originally amount + Commission
Total amount paid = $150+$15
Total amount paid =$165
Hence the amount paid to Rachel okus Commission is $165
