Mathematics
02.09.2022 02:25
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Gets brainliest a survey asks teachers and students whether they would like the

Gets brainliest
a survey asks teachers and students whether they would like the new school mascot to be a shark or a moose . this table shows the results .
a person is randomly selected from those surveyed
are being a student and preferring “shark” independent events ? why or why not ?
Gets brainliest  a survey asks teachers and students whether they would like the new school ma
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whitneyt2013
whitneyt2013
4,4(79 marks)

Being a student and preferring “shark” are not independent events

Step-by-step explanation:

Let A be the event that the selected person is a student and B the event that person prefers sharks.

Total number of students =100

Hence P(A) =\frac{100}{115} =0.8696

P(B) = Persons who prefers sharks /total persons

=\frac{95}{115} =0.8261

P(AB) = no of persons who are students and who prefer sharks/total persons

= \frac{90}{115} =0.7826

P(A)P(B) = =0.8696*0.8261\\\\=0.7183

Since P(AB) does not equal P(A) P(B), we find that

A and B are not independent.

Being a student and preferring “shark” are not independent events

myahlit84
myahlit84
4,5(75 marks)

No, the ratios are not equivalent to 2/3. To create an equivalent ratio, you need to multiply both numbers in the original ratio by the same number.


I took a test and it said that this was correct. I hope this helps!

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