4 years ago

[PLZ HELP ILL GIVE BRAINLIEST IF CORRECT!!

1 answer:

4 0

The student did step 3 wrong.
C is the correct answer.

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AnnZ [28]

Answer:

52 doses

Step-by-step explanation:

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3 years ago

Maksim231197 [3]

Answer:

y=x+5/12

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3 years ago

Zarrin [17]

Answer:
1) 13p+6
2) 13p+3

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3 years ago

denis-greek [22]

1% of $250,000 is $2,500

Your answer is C

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4 years ago

victus00 [196]

Answer: 0.0228

Step-by-step explanation:

Given : The mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

$\mu=30\\\\\sigma=5.5$

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.

Let X be the random variable that represents the finish times for this event.

z score : $z=\dfrac{x-\mu}{\sigma}$

$z=\dfrac{19-30}{5.5}=-2$

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

$P(X$

Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228

8 0

3 years ago