Answer:
The probability that at least 1 defective card is in the sample is 
Step-by-step explanation:
Here
N = 140
and n = 20
We will use the below given formula
P(at least 1 defective) = 1 - P( 0 defectives)
P( 0 defectives) =

Answer:
2/3
Step-by-step explanation:
2 - 1 1/3 = 2/3
Answer:
total price inluding tax is $40.95
Step-by-step explanation:
phone cost: $39
Tax amount: 5% of $39 -> 39 x 0.05 = $1.95
phone cost + tax:
$39 + $1.95 = $40.95
Answer:
can u pls post this question in English language
sorry can't understand
Answer
56.25
Step-by-step explanation:
First I converted the percent to a decimal which was 0.25
Then i multiplied 0.25 by 45 which was 11.25
Lastly I added 11.25 by 45 which was 56.25
Answer: 56.25