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>
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The statement that would be correct is that Current total chlorine would decrease by half.
<h3>What is the presence of chlorine and bromine in the stratosphere?</h3>
The both in the stratosphere leads to Ozone Depletion this is because if chlorine and bromine atoms unit with ozone in the stratosphere, they tend to destroy ozone molecules.
Hence, The statement that would be correct is that Current total chlorine would decrease by half as it is the most valuable options among them.
Learn more about bromine from
brainly.com/question/23894494
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