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2 years ago

Please help me solve this and its about dot plots

Mathematics

1 answer:

Lubov Fominskaja [6]2 years ago

7 0

Answer:

Step-by-step explanation:

Number of blue cars = 28

Number of dots in blue cars = 7

one dot = 28÷ 7 = 4

One dot equals 4cars

Number of tan cars = 5*4 = 20

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A survey asked eight people about their wages and educational background. The table shows the hourly wages reported by people wi

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3 years ago

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Luke noticed that throughout the season, a basketball team’s record formed a proportional relationship, as shown in the table.

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Answer:

12 wins per loss

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3 years ago

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20% of the patron's order the chef's special. The probability that 2 out of the next ten customers will order the chef's special

kotegsom [21]

Answer:

$P(x =2) = 0.3020$

Step-by-step explanation:

Given

$p =20\% = 0.20$

$n = 10$

Required

$P(x = 2)$

This question is an illustration of binomial distribution where:

$P(X = x) = ^nC_x * p^x * (1 - p)^{n-x$

So, we have:

$P(x =2) = ^{10}C_2 * 0.20^2 * (1 - 0.20)^{10-2}$

$P(x =2) = ^{10}C_2 * 0.20^2 * 0.80^8$

This gives

$P(x =2) = \frac{10!}{(10 - 2)!2!} * 0.20^2 * 0.80^8$

$P(x =2) = \frac{10!}{8!2!} * 0.20^2 * 0.80^8$

Expand

$P(x =2) = \frac{10*9*8!}{8!2*1} * 0.20^2 * 0.80^8$

$P(x =2) = \frac{10*9}{2} * 0.20^2 * 0.80^8$

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2 years ago

pllz answer Masterson Wood Products pays Patricia Griffin a $640 monthly salary plus a 11% commission on merchandise she sells e

Marianna [84]

Answer:

$8659

Step-by-step explanation:

Patricia's sales = $ 72,900

Her commission = 11% of $72,900

= 11/100 * 72,900 [ % means out of 100 and of means to multiply ]

= 11 * 729

= $ 8019

Her monthly salary = $640

Her monthly salary along with commission = $640 + $8019

= $8659

$\rule[225]{225}{2}$

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Solve the problems using your graphing calculator. Round all parameter values to

Effectus [21]

Drawing a scatter plot for the given values on a graphing calculator, we have;

y = -0.19•x + 8.36

<h3>How can the function that best represents the data be found?</h3>

The values are;

Day; Running time

1; 8.2

2; 8.1

3; 7.5

4; 7.8

5; 7.4

6; 7.2

7; 7.1

Entering the above values in a graphing calculator, we have;

The slope of the line of best fit = -0.19
The x-intercept = 45

Therefore;

0 = -0.19 × 45 + y-intercept

0 = -8.36 + y-intercept

y-intercept = 8.36

The equation found using the statistics function for scatter plot on a calculator is therefore;

y = -0.19•x + 8.36

Learn more about scatter plots here:

brainly.com/question/2605413

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2 years ago