Answer:
The answer is 3 1/2.
Step-by-step explanation:
-There are 2 simple ways to do this.
-The first is just subtracting 3/4 and 1/4 which equals 2/4 or 1/2.
-The second way is to turn it into an improper fraction.
-(5*4)+3=23 and (2*4)+1=9.
-23/4-9/4=14/4
-14/4=3 1/2
P(X<=x) = 1 + 5.486 = 6.486
The z-score of the information given is,
z = (x - µ )/ σ
Where,
µ = mean
σ = standard deviation
From the information given,
x = 3.71
µ = 86
σ = √225 = 15
hence,
z = (3.71 - 86)/15 = -5.486
thus,
P(X<=x) = 1 + 5.486 = 6.486
hence , P(X<=x) = 1 + 5.486 = 6.486
Learn more about variance here brainly.com/question/9304306
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Y + 3 = 1.2(x - 0)
y + 3 = 1.2x - 0
y = 1.2x - 3
845 because 800 is greater than 700 and 845 is an odd number because it ends in 5 (which is an odd number).
