Here is a list of numbers. -45
-21
-16
12
33
40
a) Write down two numbers from the list that add up to -9.
-16 and 12
b) Write down two numbers from the list that have a difference of 29.
c) Work out the sum of all the numbers in the list.
Negatives - Adding and Subtracting
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FOUNDATION 1a - Integers and Place Val
Clin 68

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.