3 years ago

Please help ASAP !!!!!

Mathematics

1 answer:

zloy xaker [14]3 years ago

7 0

Answer:

i need points im really sorry

Step-by-step explanation:

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the times that gym members spend on a treadmill are normally distributed with a mean of 20 min and a standard deviation of 8 min

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<span>Given:
xbar = 20 min
standard deviation = 8 min
total sample = 240

Required:
how many gym members are expected to spend 4 min and 36 min on a treadmill today

Solution:
sd</span>² = (∑(x - xbar)²) / N - 1

there are 42 gym members at 4 minutes and 200 gym members in 36 minutes.

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enyata [817]

Let's firstly convert the mixed fraction to "improper" and then proceed,

$\bf \begin{array}{ccll}
\stackrel{broth}{cups}&servings\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
4\frac{3}{4}&10\\\\
x&1
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\\\\\\
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Step-by-step explanation:

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