Divide numerator (top number) by denominator (bottom number). 3 divided by 8. It’s 0.375
Answer:
Step-by-step explanation:
Let X be the heights of adult men in America and Y that of women in America
X is N(69.8, 2.69) and Y is N(64.8,2.53)
a) Man is 6 feet 3 inches = 75 inches
Z score =
b) Prob = 0.5-0.4686 = 0.0314
3.14% are shorter than him
c) Y score = 5 ft 11 inches = 71 inches
Z=
d) Prob (Z>2.45) = 0.5-0.4929=0.0071
Nearly 0.71% people are taller than 5 ft 11 inches.
Answer:
The required answer is 54.
Step-by-step explanation:
Given that a = 3 and b = (-1) . And we have to find the value of 2a³ b⁴ .
In such kind of problems , just substitute the given values of a and b to get the required answer .
So here ,
= 2a³ b⁴.
= 2 × (3)³ × (-1)⁴.
= 2 × 27 × 1 .
= 54