2 years ago

17+2x3=? :) :) :) :) :) :) :) :p

Advanced Placement (AP)

2 answers:

evablogger [386]2 years ago

5 0

The answer is 23 i believe

nydimaria [60]2 years ago

5 0

23
Using PEMDAS
Parentheses
Exponent
Multiplication or Division(which ever comes first left to right)
Add or Subtract(which ever comes first left to right)

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Suppose that IQ scores have a bell shaped distribution with a mean of 98 and standard deviation of 13. Using the empirical rule,

inn [45]

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>