All categories

4 years ago

Area unit conversion with whole numbers value 5 yards long and 4 wide = what in square feet?

Mathematics

1 answer:

Law Incorporation [45]4 years ago

4 0

Poopjjjvgjg tj bejvevkq rvrj vrvirgivd

You might be interested in

Southwest Co-op produces bags of fertilizer, and it is concerned about impurity content. It is believed that the weights of impu

Harman [31]

Answer:

a) 0.216

b) 0.1587

c) 0.369

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 12.2 grams

Standard Deviation, σ = 2.8 grams

We are given that the distribution of weights of impurities per bag is a bell shaped distribution that is a normal distribution.

Formula:

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

a) P(contains less than 10 grams of impurities)

P(x < 10)

$P( x < 10) = P( z < \displaystyle\frac{10 - 12.2}{2.8}) = P(z < -0.7857)$

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

$P(x < 10) =0.216= 21.6\%$

b) P(contains more than 15 grams of impurities)

P(x > 15)

$P( x > 15) = P( z > \displaystyle\frac{15 - 12.2}{2.8}) = P(z > 1)$

$= 1 - P(z \leq 1)$

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

$P(x > 610) = 1 - 0.8413 = 0.1587 = 15.87\%$

c) P(contains between 12 and 15 grams of impurities)

$P(12 \leq x \leq 15) = P(\displaystyle\frac{12 - 12.2}{2.8} \leq z \leq \displaystyle\frac{15-12.2}{2.8}) \\\\= P(-0.0714 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -0.0714)\\= 0.841 - 0.472 = 0.369 = 36.9\%$

$P(12 \leq x \leq 15) = 36.9%$

d) The mean divide the data in exactly two parts. Since 15 is farther away from the mean as compared to 10, the probability obtained in part (b) is smaller as compared to probability obtained in part (a).

5 0

4 years ago

What is the equation of the line?

VikaD [51]

The equation is "x=0", because the x intercepts at the x axis with no y-intercept.

6 0

3 years ago

Which table shows a proportional relationship between x and y?

ladessa [460]

Y 6 8 10 12 X - because it increases at a constant rate of 2

7 0

3 years ago

Read 2 more answers

PLEASE HELP! What is the slope of the line that passes through (3,6) and (7,16)?

pav-90 [236]

I believe the answer would be 2.5

5 0

3 years ago

Define probability. give an example of the probability of a simple event.

torisob [31]

Defenition: its just <span>the likelihood of something happening or being the case.

An example would be: there is a slight probablility that tomorrow it will rain, so there is a small possibility</span>

6 0

4 years ago

Read 2 more answers