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3 years ago

9

Susan is a college student with two part-time jobs. She earns $10 per hour tutoring

1 answer:

murzikaleks [220]3 years ago

3 0

MY CAPS LOCK BUTTON IS FROGGING STUCK HKW DO I GEF IT PFF PLEASE HELP I ACCIDENTALLY HIT MY TOE ON MY PHONE REALLY HARD AND I CRACKED MY SCREEN AND NOW THE CAPS LOCK OS LOCKED AND I DONT WANT PEOPLE TO THK K IM YELLING PLEASE HELL THE ANDWRT IS B BTWW

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A scale model of a bicycle has a scale of 1 : 10. The real bicycle has a length of 1.6 m. What is the length of the model in cm?

garri49 [273]

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Please help me compute standard deviation! Here is the problem, as written.

aleksandr82 [10.1K]

Answer:

The standard deviation for the income of super shoppers is 76.12.

Step-by-step explanation:

The formula to compute the standard deviation for the grouped data probability distribution is:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

Here,

<em>x</em> = midpoints

$\mu=\sum x\cdot P(x)$

Consider the Excel table attached below.

The mean is:

$\mu=\sum x\cdot P(x)=32.3$

Compute the standard deviation as follows:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

$=\sqrt{259.71}\\\\=76.1155204\\\\\approx 76.12$

Thus, the standard deviation for the income of super shoppers is 76.12.

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3 years ago