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3 years ago

Can someone help me graph these? Right answers get brainliest!!

Mathematics

1 answer:

Rama09 [41]3 years ago

5 0

Answer:

Step-by-step explanation:

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A city police officer using radar checked the speed of 26 cars as they were travelling down a city street and the data is given

pychu [463]

Answer: The distribution of the data set is positively skewed.

<u>Explanation: </u>

In order to see whether the given data set is symmetric, positively skewed or negatively skewed, we will find the mean, median and mode of the given data set.

For symmetric distribution, $Mean = Median=Mode$

For positively skewed distribution, $Mean > Median>Mode$

For negatively skewed distribution, $Mean < Median$

The mean of the given data set is given below:

$Mean = \frac{27+23+22+38+43+24+25+23+22+54+31+30+29+48+27+25+29+28+26+33+25+21+23+34+20+23}{26}$

$=\frac{753}{26}$

$=28.96$

Now, the Median is:

To find the median we need to sort the data in ascending order as:

$20,21,22,22,23,23,23,23,24,25,25,25,26,27,27,28,29,29,30,31,33,34,38,43,48,54$

$Median=\left(\frac{N+1}{2} \right)^{th} item$

$=\left(\frac{26+1}{2}\right)^{th} item$

$=13.5^{th} item$

$=26+0.5 \times (27-26)$

$=26.5$

$\therefore Median = 26.5$

The mode is the most frequently occurring observation. Therefore the mode is:

$Mode=23$

Since the $Mean >Median>Mode$ , therefore the distribution of the given data set is positively skewed.

5 0

4 years ago

Simplify 3/8 and 9/64<br><br> PLEASE HELP

Andrew [12]

Answer:

3/8 simplified is still 3/8 (0.375 in decimal form)

9/64 simplified is also still 9/64 (0.140625 in decimal form)

Step-by-step explanation:

5 0

3 years ago

Marisol constructed a triangle. One angle in the triangle has a measure of 40°. Another angle in the triangle has a measure of 8

Tanzania [10]

Answer:

A triangles angle always equal to 180 degrees. So if you add up what you already have which is 80+40=120

5 0

3 years ago

Can someone pls help

Len [333]

Answer:

I believe the answer is D

Step-by-step explanation:

6 0

3 years ago

Find the area. Do you multiply all sides?

arlik [135]

Answer:

Step-by-step explanation:

I think you are to assume that this is a trapezoid and that the top right angle symbol is missing.

Area = (b1 + b2 ) * h /2

Givens

b1 = 2

b2 = 6.2

h = 3

Solution

Area = (2 + 6.2)* 3 / 2 Combine what is inside the brackets

Area = 8.2 * 3 / 2 Divide by 2

Area = 4.1 * 3 Combine

Answer: Area = 12.3

3 0

3 years ago

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