subject
Mathematics, 01.08.2019 20:00 Misspaige5150

When an opinion poll calls landline telephone numbers at random, approximately 30% of the numbers are working residential phone numbers. the remainder are either non-residential, non-working, or computer/fax numbers. you watch the random dialing machine make 20 calls. x is the number that reach a working residential number?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 17:20
What is the reflection image of (5,-3) across the line y = -x?
Answers: 1
question
Mathematics, 21.06.2019 20:00
Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.
Answers: 1
question
Mathematics, 21.06.2019 20:00
0if x and y vary inversely and y=6 as x=7, what is the constant of variation?
Answers: 1
question
Mathematics, 21.06.2019 22:00
Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b
Answers: 1
You know the right answer?
When an opinion poll calls landline telephone numbers at random, approximately 30% of the numbers ar...
Questions
question
Mathematics, 22.06.2019 13:30
question
Mathematics, 22.06.2019 13:30