Yaya says:
IQ Scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. What percentage of IQ scores are between 70 and 130?
<span>Solution: </span>130 – 100 = 30 which is 2(15). Thus, 130 is 2 standard deviations to the right of the mean. 100 – 70 = 30 which is 2(15). Thus, 70 is 2 standard deviations to the left of the mean. Since 70 to 130 is within 2 standard deviations of the mean, we know that <span>about 95% of the IQ scores would be between 70 and 130.</span>
Answer:
D
Explanation:
The dotplot is closer to approximately normal than the distribution of the population with mean $150 and standard deviation $10.
Generally, the more allowances the employee claims on a Form W-4, the lower the withholding tax. Withholding tax applies to income earned through wages, pensions, bonuses, commissions, and gambling winnings. Dividends and capital gains, for example, are not subject to withholding tax
Yes, it is fair because some people might intentionally did it for their own self act of crime. Not everyone is good. Some people are very selfless.