(red, green) add up to 7 = (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1)
(red, green) add up to 11 = (5, 6), (6, 5)
P(add up to either 7 or 11) = 8/36 = 2/9
Let's start with what we know:
Mary needs at least $50 to pay back her parents
Currently, she has $10, $12, and $25 in her possession. Let's add those values together and see if they equal $50 or more:
10 + 12 + 25
22 + 25 = $47
Since she only has $47, she needs $3 more to pay back her parents.
Take 40 and multiply it by any number bigger than 2 then add 4.
124,164,204
You have 10 slices of cake, you and your friends Jerry, George, Martha, and Jenny ( just an example ) eat 2 slices of cake.
A more real life one would be:
You have 6 bills to pay off, then two more come in, you only pay off 4,
( I hope this helped, I'm sorry if any of this is wrong:) )
Standard deviation is simply the square root of the variance.
We need to get the square root of each variance to see whether its standard deviation is greater than its variance.
A. 0.25 ⇒ √0.25 = 0.50B. 1.75 ⇒ √1.75 = 1.32C. 2.5 ⇒ √2.5 = 1.58D. 1.5 ⇒ √1.5 = 1.22
Among the choices, only A. 0.25 has a standard deviation that is greater than the variance. The standard deviation is 0.50
