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mestny [16]
3 years ago
7

Brainlist answer!!Can I get some help with this, please!!

Mathematics
1 answer:
Gemiola [76]3 years ago
4 0
A) The question would be "Does cell phone use time correlate to brain cancer?". The population is all cell phone users. The sample is the 469 people with brain cancer, and the 422 healthy people. 

B) This sample size may not portray the entire population of users because the positive results may have been fabricated by factors other than cell phone use. You would have to figure out the population size and determine the correct sample size. 

C) This study may not portray cell phone use correlation over a large population efficiently because of the sample size and the predetermined conclusion that cell phone use causes cancer. 
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snow_tiger [21]
Your answer should be D, 163, hope this helps! :D
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3 years ago
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Really struggling with this, can someone please help me out and give me a brief explanation? Id greatly appreciate it.
dsp73

Answer:

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Step-by-step explanation:

7 0
3 years ago
Find n(A) for the following set. <br> A={a,b,c,...,z}
MariettaO [177]

n(A) = 26

Solution:

Let us first define the cardinal number of the set.

Cardinal number of the set:

The number of distinct elements in a finite set is called its cardinal number. It is denoted as n(A).

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We know that, there are 26 elements in the alphabet "a to z".

Number of elements in the set A = 26

Hence n(A) = 26.

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Neko [114]

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Step-by-step explanation:

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