Answer:
The 3rd set
Step-by-step explanation:
The first set has a range of 6, not 5
The second set has a range of 5, but not a mean of 5
The third set has both a mean and a range of 5
The answer is 10/7
hope this helped.
Answer:
Option D, 16/21
Step-by-step explanation:
<u>Step 1: Add all of them together</u>
5 + 7 + 9
21
<u>Step 2: Figure out how much of the plants are medicinal</u>
7 + 9
16
<u>Step 3: Figure out the probability </u>
16/21
Answer: Option D, 16/21
Answer:
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Step-by-step explanation:
Given

Required
The standard deviation
First, calculate the expected value E(x)

So, we have:


Next, calculate E(x^2)

So, we have:


The standard deviation is:




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<em> --- approximated</em>