Question

a) What is the probability that two Data Management and two Calculus students are chosen?

b) What is the probability that no Calculus students are chosen?


c) What is the probability that all four students are from the Functions class?

d) What is the expected number of Data Management student to be selected

Answer 1

a) What is the probability that two Data Management and two Calculus students are chosen? [2]
P(x) = (7 C 2) * (4 C 0) * (6 C 2)/ 17 C 4)
= 21 * 1 * 15/ 2380
= 315/ 2380
= 0.1324

b) What is the probability that no Calculus students are chosen? [2]
P( x=0) = (6 C 0) (13 C 4) / 17 C 4
= 1 * 715/ 2380
= 0.3004

c) What is the probability that all four students are from the Functions class? [2]
P (x=4) = (4 C 4) (13 C 0) / 17 C 4
= 1/ 2380
= 0.000420168
d) What is the expected number of Data Management student to be selected? [2]

E(x)= 4 x 7/ 17
= 1.65

Answer 2

@jim_thompson5910

Answer 3

Did I do this right?

Answer 4

@imranmeah91 @Ishaan94 @LagrangeSon678

Answer 5

@jim_thompson5910

Answer 6

Is there more to the problem that isn't here?

Answer 7

WHOOPS! LOL.

Woodsborough High wants to send four Grade 12 students to a Mathematics conference at McGill University. Students with an average of 90% or above are allowed to attend the conference. The Data Management class was able to nominate 7 candidates, the Functions class nominated 4 candidates, and the Calculus class nominated 6 candidates (no student is taking more than one math class). The candidates are chosen at random.

Answer 8

@jim_thompson5910

Answer 9

one moment while I check something

Answer 10

your answer to part a) is correct

Answer 11

Everything else checks out, you have all correct answers. Nice work.

Answer 12

Alright thanks! :)

Answer 13

yw