Mathematics, 25.12.2019 00:31 elchapo8362
Two sections of a class took the same quiz. section a had 15 students who had a mean score of 80, and section b had 20 students who had a mean score of 90. overall, what was the approximate mean score for all of the students on the quiz?
a. 85.7
b. 85.0
c. none of these
d. 84.3
e. it cannot be determined
Answers: 3
Mathematics, 21.06.2019 17:00
Can someone me i’m confused. will give brainliest and a whole bunch of points
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Mathematics, 21.06.2019 18:30
Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.
Answers: 3
Mathematics, 21.06.2019 19:30
Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?
Answers: 1
Mathematics, 21.06.2019 21:30
(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.
Answers: 2
Two sections of a class took the same quiz. section a had 15 students who had a mean score of 80, an...
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