sophiagcanelon sophiagcanelon

10-03-2022
Mathematics

contestada

help pls!
Find the indicated conditional probability
using the following two-way table:
Grade
Drive to school Take the bus
Walk
2
25
Sophomore
3
Junior
13
2
N
2
Senior
25
5
5
P( Take the bus | Junior) = [?]
Round to the nearest hundredth.

help pls Find the indicated conditional probability using the following twoway table Grade Drive to school Take the bus Walk 2 25 Sophomore 3 Junior 13 2 N 2 Se class=

Respuesta :

jimthompson5910 jimthompson5910

10-03-2022

Answer: 0.57

===================================================

Explanation:

The notation

P( Take the bus | Junior)

is the same as writing

P( Take the bus given Junior)

I replaced the vertical bar with the word "given".

Since we're given that the person is a Junior, this means we only focus on the Juniors. There are 13+20+2 = 35 Juniors and 20 of them take the bus.

20/35 = 0.5714 approximately which rounds to 0.57

This says about 57% of the Juniors take the bus.

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