Respuesta :
The score that is one and a half standard deviation below the mean is 91.
Mean is defined as the average of given numbers i.e. sum of all numbers divided by the total number of numbers. The Mean is denoted as m or μ. Standard deviation is the measure which it shows the variation from the mean exists or not. The standard deviation is denoted as σ.
According to the given problem,
mean (μ) = 130
standard deviation (σ) = 26
Let x be the score that is one and a half standard deviations below the mean.
⇒ x = μ - 1.5σ → 1
Substitute the values μ = 130 and σ = 26 in 1,
x = μ - 1.5σ
= 130 - 1.5(26)
= 130 - 39
x = 91
A score of 91 is one and a half standard deviations below the mean.
To know more about finding scores using standard deviation and mean refer to:
https://brainly.com/question/6956996
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