In plain and short, what's 2/3 of 7/8? well, is just their product.
Answer:
isnt 9?
Step-by-step explanation:
i asked google lololol
102 times 4 =408
i know this because a square has 4 sides and i just need to multiply 102 and 4
Answer:
3/1*1/4
Step-by-step explanation:
when you multiply 3/1 by 1/4
Part a: For variable X using z score you have (x-30)/10, replace X for this expression in (a), i mean Z=2+10((x-30)/10) = 2+x-30= put this in the way of z score = (x-18)/1, so the mean is 18 and standard deviation is 1.
Part b: Z=X+Y= (x-30)/10 + (x-20)/8 = solve adding fractions = (18x-440)/80 now divide all the numbers between 18 (because you need to show as z score way) = (x-24.4)/4.4, so the mean is 24.4 and standard deviation is 4.4.
For part c,do the same.