Answer:
<u>The probability of accepting the lot if none in the lot are defective is </u><u>1</u>.
Step-by-step explanation:
A large lot of crankshaft bearings is accepted if 0 out of 7 are found defective. i.e. the probability of finding a defective crankshaft is 0.
Let X be the number of defective crankshafts. We need to find the probability that X=0. We will use the binomial distribution probability formula:
<u>P(X=x) = ⁿCₓ pˣ qⁿ⁻ˣ</u>
where n = total no. of trials
x = no. of successful trials
p = probability of success
q = probability of failure (1-p)
We have n=7, p=0, q=1.
P(X=0) = ⁷C₀ (0)⁰ (1)⁷⁻⁰
P(X=0) = 1
Answer:
Measure of <z would 125 degrees
Step-by-step explanation:
Answer:
65%
Step-by-step explanation:
To find the percent of 6th graders who chose green as their favorite colors, you have divide 156 by 240, because this is saying of the whole (240), what was the part (those who chose green as their favorite color). The answer is a decimal, 0.65. To change this into a percent, change the decimal to a fraction over 100, and add a percent.
0.65 -> 65/100->65%
Answer:
79.617...
Step-by-step explanation:
When you are trying to find the circumfrence you do c=πd
So to find the diameter you reverse it
Since you already know the 250 feet you divide it by π
You then get 79.6