The formula of the margin of error of the sample mean.
MOE = standard deviation / square root (sample size).
MOE = 0.043 * 15 / square root (15)
MOE = 0.1665
So, the margin of error of the sample mean is 0.17
The percentage of those asked who favoured exactly one sportsperson is 75.
Given that, 78% of those asked were in favour of at least one of the three sportspersons. 50% of those asked favoured Saina, 30% favoured Dhoni, and 20% favoured Anand. If 5% of those asked favoured all three of them.
We need to find what percentage of those asked favoured exactly one sportsperson.
<h3>What is a Venn diagram?</h3>
A Venn diagram is an illustration that uses circles to show the relationships among things or finite groups of things. Circles that overlap have a commonality while circles that do not overlap do not share those traits. Venn diagrams help to visually represent the similarities and differences between two concepts.
Now, favoured exactly one sportsperson=50+30+20-[(30-50-20-5)+(50-30-20-5)+(20-50-30-5)]
=100+(45-5-65)
=100-25
=75
Therefore, the percentage of those asked who favoured exactly one sportsperson is 75.
To learn more about a Venn diagram visit:
brainly.com/question/1605100.
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7-10 3-5 0.85 0.15
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