3 years ago

Where would you use a dot plot?

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

8 0

Like in real life problems?

if yes then when conducting a survey, when grading quizzes/assignments, etc

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Answer: σ: 2.76

Step-by-step explanation:

Count, N: 5

Sum, Σx: 125

Mean, μ: 25

Variance, σ2: 7.6

Steps

look at attached pic for formula

σ^2 = $\frac{Σ(xi - μ)^{2} }{N}$

$\frac{(21 - 25)2 + ... + (29 - 25)2}{5}$

⇒ $\frac{38}{5}$

⇒ 7.6

σ = $\sqrt{7.6}$

⇒ 2.756809750418

⇒ or 2.76

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Where would you use a dot plot? ​

Where would you use a dot plot?