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2 years ago

7

The heights (in inches) of the starting players on a high school basketball team as follows: 72, 75, 78, 72, 73. how many starti

ng player are there?

1 answer:

RUDIKE [14]2 years ago

6 0

Five.

There are five heights of the starting players, so there are five starting players.

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Marco located the falllow points on a number line which point is not corrtly placed on the number line

mario62 [17]

Question:

Marco plotted the following points on the number line.

Point A: 0.3 Point B: 3/4 Point C: 11/4 Point D: 0.7

Which point did he plot incorrectly?

Answer:

Point D

Step-by-step explanation:

Given

$Point\ A= 0.3$

$Point\ B= \frac{3}{4}$

$Point\ C= \frac{11}{4}$

$Point\ D= 0.7$

Required

The incorrectly plotted point

Number plotted on a number line increases from left to right. This implies that:

$A < B < C < D$

Substitute the values for the given points

$0.3 < \frac{3}{4} < \frac{11}{4} < 0.7$

Express as fractions

$0.3 < 0.75 < 2.75 < 0.7$

Up till 2.75, the order of the numbers is correct.

However, 0.7 is less than 0.75 and 2.75

So, 0.7 is not placed correctly.

<em>This implies that point D is not correctly placed</em>

7 0

2 years ago

Find the regression equation, letting the first variable be the predictor (x) variable. Using the listed lemon/crash data, wh

kakasveta [241]

The regression analysis evaluates the amount of relationship that exists

between the variables in the analysis.

The regression equation is; $\underline{\overline y = -0.00255 \cdot \overline x + 16.47268}$

The prediction is worthwhile because it gives an idea of the observed Crash Fatality Rate and it is therefore approximately correct.

Reasons:

First part;

The given data is presented as follows;

$\begin{tabular}{|cc|c|}Lemon Imports (x) &&Crash Fatality Rate\\232&&16\\268&&15.7\\361&&15.4\\472&&15.5\\535&&15\end{array}\right]$

The least squares regression equation is; $\overline y = b \cdot \overline x + c$

Where;

$b = \mathbf{\dfrac{\sum \left(x_i - \bar x\right) \times \left(y_i - \bar y\right) }{\sum \left(x_i - \bar x\right )^2 }}$

$\overline y$ = The mean crash fatality = 15.52

$\overline x$ = The mean lemon import = 373.6

Therefore;

$b = \dfrac{-171.36 }{67093.2 } = -0.00255$

c = $\overline y$ - b· $\overline x$ = 15.52 - (-0.00255)×373.6 = 16.47268

Therefore;

The regression equation is $\underline{\overline y = -0.00255 \cdot \overline x + 16.47268}$

Second part;

When the imports is 425 metric tons of lemon, we have;

$\overline y$ = -0.00255 × 425 + 16.47268 = 15.38893 ≈ 15.4

Therefore;

When the import is 425 metric tons, the Crash Fatality Rate ≈ 15.4

Given that the predicted value is between the values for 268 and 535, we

have that the prediction is approximately correct or worthwhile

<u>The prediction is worthwhile</u>

Learn more about regression equation here:

brainly.com/question/5586207

8 0

1 year ago

Ancient Egyptians did not write the fraction 4/5 as 4/5. Instead they used unit fractions. The numerator of a unit fraction is a

Salsk061 [2.6K]

<u>3/4</u> = 1/2 + 1/4

<u>5/8</u> = 1/2 + 1/8

<u>7/12</u> = 1/2 + 1/12

7 0

2 years ago

Write an equation for the line that passes through (2, -2) and (4, -1)

Dahasolnce [82]

Answer: y=1/2x-3

Step-by-step explanation:

Slope-intercept form:y=mx+b

m=y2-y1/x2-x1

-1-(-2)/4-2=1/2

y=1/2x+b

-1=1/2(4)+b

-1=2+b

b=-3

6 0

2 years ago

Which of the following equations is equivalent to x - y = 8?

matrenka [14]

Say x = 12 and y = 4
12 - 4 = 8

Number 1
2(12) - 4(4) = 8
24 - 16 = 8
Number 1 is your Answer

4 0

2 years ago

Read 2 more answers