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3 years ago

9

A snack bar offers chili and or cheese on its hot dogs for an additional fee. the owner kept track of the hot dog orders over th

e course of a week. his data are shown in a relative frequency table.
what does the 0.3 in the highlighted mean?

1 answer:

kozerog [31]3 years ago

5 0

30% of his customers ordered chili with no cheese

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The waking time of a student under common conditions is normally distributed with mean of 30 hours and a standard deviation of 5

Elina [12.6K]

Answer:

If the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 30 hours

Standard Deviation, σ = 5 hours

We are given that the distribution of waking time is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.95

$P( X < x) = P( z < \displaystyle\frac{x - 30}{5})=0.95$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 30}{5} = 1.645\\\\x = 38.225$

Thus, if the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.

4 0

3 years ago

Amir evaluated 5x - (x + 3)2 for x = 2, as shown. Describe Amir's mistake and find the correct answer. 5(2) - (2 + 3)2 = 10 + (-

Korvikt [17]

$5 \times 2 - (2 + 3) \times 2 = 10 - 5 \times 2 = 10 - 10 = 0$

7 0

2 years ago

Read 2 more answers

The equation of the line pass through the points (-4,2) and (-5,2) is

ivanzaharov [21]

Answer:

y = 2

Step-by-step explanation:

Both points are on the horizontal line ...

y = 2

__

<em>Additional comment</em>

A horizontal line has equation y = constant. A vertical line has equation x = constant.

7 0

2 years ago

Read 2 more answers

The diameter of a circle is 2 miles. what is the circles radius?

luda_lava [24]

Answer:

the radius is half of the diameter so that would mean that the radius is 1 mile.

Step-by-step explanation:

5 0

3 years ago

Here are the percents of the popular

kvv77 [185]

Answer: 57.4

Step-by-step explanation:

First order the numbers from the smallest to the largest:

49.6, 55.1, 57.4, 49.7, 61.1, 43.4, 60.7, 50.1, 50.7, 58.8, 53.9, 43.2, 49.2, 47.9, 51.2

to:

43.2, 43.4, 47.9, 49.2, 49.6, 49.7, 50.1, 50.7, 51.2, 53.9, 55.1, 57.4, 58.8, 60.7, 61.1.

The position of third quartile is:

= (N + 1) * 3/4

= (15 + 1) * 3/4

= 12th position

That number is:

= 57.4

8 0

2 years ago