Answer:
0.30854
Step-by-step explanation:
Given :
Sample size, n = 602
p = 10% = 0.1
q = 1 - p = 1 - 0.1 = 0.9
Using binomial approximation :
Mean, m = n * p = 602 * 0.1 = 60.2
Standard deviation, s = sqrt(npq) = sqrt(602*0.1*0.9) = 7.36
P(x < x - 0.5) = (x - m) / s
x = 57
P(x < 56.5) = (56.5 - 60.2) / 7.36
Z = - 3.7 / 7.36
Z = - 0.5027 = - 0.50
P(Z < - 0.50) = 0.30854 (Z probability calculator)
Answer:
25%
Step-by-step explanation:
4 days of 16 days is 25% or 1/4
Hope this helps! ;-)
Answer:
y=x+30
Step-by-step explanation:
use y2-y1/x2-x1 to find the slope
the y-int is 30 since looking at the answer choices
Question 4- You need to subtract the shortest bolt from the longest bolt, or 1 1/4 minus 3/8. Make 1 1/4 improper and make the denominator 8 so multiply 5x2=10 and 4x2=8. 10/8 - 3/8 equals 7/8 and thats your final answer. Hope this helped ;)
X^2 x 8x -3x^2 +5 x 8x -5 x 3
8x^3 -3x^2 +40x -15