Ask question

Ask question

All categories

katovenus [111]

3 years ago

13

The original price of a dining table set is $400. The set is on sale for 40% off. What is the sale price of the set?

1 answer:

disa [49]3 years ago

7 0

Answer:

Your answer will be $240

You might be interested in

) Make a scatter plot of mice survival rate (response) against aspartame concentration (explanatory) and add the regression line

Mashutka [201]

Answer & Step-by-step explanation:

Regression studies the relationship between independent / explanatory (causal) variable, dependent / response (effected) variable. Scatter plot is a diagrammatic representation of regression.

Aspartame Concentration, being a toxic substance, is likely to have negative regression relationship with mice survival rate. It implies that higher concentration leads to lower mice survival, & lower concentration leads to higher mice survival.

The relationship can be strong or weak, depicted by 'r' magnitude, depending upon the intensity of concentration impact on survival. If more percent of the variation in survival rate can be explained by variations in concentrations, regression coefficient is high. If less percent of the variation in survival rate can be explained by variations in concentrations, regression coefficient is low

4 0

3 years ago

Find the output, g, when the input, r, is 3. <br><br> g = -5r + 13<br><br> g = __

faltersainse [42]

Answer:-2

Step-by-step explanation:

g=-5(3)+13

=-15+13

=-2

Hope this helps

6 0

3 years ago

Read 2 more answers

3 ft = ________________ m

aksik [14]

Answer:

0.9144 meters, or 1 meter if you round it up

8 0

3 years ago

Read 2 more answers

What is 130% of 56g?

jeka57 [31]

The answer would be 72.8 grams

5 0

2 years ago

A manufacturer knows that on average 20% of the electric toasters produced require repairs within 1 year after they are sold. Wh

Effectus [21]

Answer:

(a) The value of <em>x</em> is 5.

(b) The value of <em>y</em> is 15.

Step-by-step explanation:

Let the random variable <em>X</em> represent the number of electric toasters produced that require repairs within 1 year.

And the let the random variable <em>Y</em> represent the number of electric toasters produced that does not require repairs within 1 year.

The probability of the random variables are:

P (X) = 0.20

P (Y) = 1 - P (X) = 1 - 0.20 = 0.80

The event that a randomly selected electric toaster requires repair is independent of the other electric toasters.

A random sample of <em>n</em> = 20 toasters are selected.

The random variable <em>X</em> and <em>Y</em> thus, follows binomial distribution.

The probability mass function of <em>X</em> and <em>Y</em> are:

$P(X=x)={20\choose x}(0.20)^{x}(1-0.20)^{20-x}$

$P(Y=y)={20\choose y}(0.20)^{20-y}(1-0.20)^{y}$

(a)

Compute the value of <em>x</em> such that P (X ≥ x) < 0.50:

$P (X \geq x) < 0.50\\\\1-P(X\leq x-1)$

Use the Binomial table for <em>n</em> = 20 and <em>p</em> = 0.20.

$0.411=\sum\limits^{3}_{x=0}[b(x,20,0.20)]$

The least value of <em>x</em> that satisfies the inequality P (X ≥ x) < 0.50 is:

<em>x</em> - 1 = 4

<em>x</em> = 5

Thus, the value of <em>x</em> is 5.

(b)

Compute the value of <em>y</em> such that P (Y ≥ y) > 0.80:

$P (Y \geq y) >0.80\\\\P(Y\leq 20-y)>0.80\\\\P(Y\leq 20-y)>0.80\\\\\sum\limits^{20-y}_{y=0}[{20\choose y}(0.20)^{20-y}(1-0.20)^{y}]>0.80$

Use the Binomial table for <em>n</em> = 20 and <em>p</em> = 0.20.

$0.630=\sum\limits^{4}_{y=0}[b(y,20,0.20)]$

The least value of <em>y</em> that satisfies the inequality P (Y ≥ y) > 0.80 is:

20 <em>- y</em> = 5

<em>y</em> = 15

Thus, the value of <em>y</em> is 15.

3 0

3 years ago