Mathematics, 27.11.2019 00:31 lopez7512
Afamily has 8 girls and 4 boys. a total of 2 children must be chosen to speak on the behalf of the family at a local benefit. what is the probability that 2 girls and no boys are chosen?
a. 7/55
b. 14/33
c. 12/33
d. 1/6
Answers: 3
Mathematics, 21.06.2019 16:50
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
Answers: 3
Mathematics, 21.06.2019 18:00
He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .
Answers: 1
Mathematics, 21.06.2019 19:30
Which of the following describes the symmetry of the graph of y = x3?
Answers: 2
Afamily has 8 girls and 4 boys. a total of 2 children must be chosen to speak on the behalf of the f...
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