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3 years ago

Which statement about the data is true?

Mathematics

2 answers:

Aleksandr [31]3 years ago

8 0

Your correct b is the correct answer

dalvyx [7]3 years ago

4 0

Answer:

(B)

Step-by-step explanation:

The given data set is:

228, 251, 22, 206, 254, 288, 228, 242

Since, in the given data set, 22 is an outlier which will affect the mean of the data, thus mean cannot be used to measure the center of the data due to the presence of an outlier.

Also, the median is the central value which is used to measure the center of the given data set, thus median can be used to find the measures of center.

The mode can be calculated for qualitative data as well as for quantitative data and can also be used to find the measures of center.

Thus, option B is correct.

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Pretend you have a sibling who is two years younger than you. He/she hears you working on triangle similarity and wants to know

taurus [48]

Two triangles are similar if they are the same, except one is bigger and one is smaller. Also, their angles are all the same. A career that uses similar triangles could be a mathematician, or a math teacher. Both of these need to be able to understand simple concepts like similar triangles to teach to their victims.

5 0

3 years ago

What does a+b equal if a is equal to 0.6 and b is equal to 1.9

Lunna [17]

0.6+1.9= 2.5 is the result.

8 0

3 years ago

True or False: A race car driver tested his car for time from 0 to 60 mph, and for 20 tests obtained a mean of 4.85 seconds with

sattari [20]

Answer:

The given statement is false.

Step-by-step explanation:

We are given the following in the question:

95% confidence interval: (4.53,5.18)

Sample mean, $\bar{x}$ = 4.85 seconds

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, σ = 1.47 seconds

Degree of freedom = n - 1 = 19

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 4 and}~\alpha_{0.01} = \pm 2.09$

$4.85 \pm 2.09(\dfrac{ 1.47}{\sqrt{20}} )\\\\ = 4.85 \pm 0.69 \\\\= (4.16 ,5.54)$

Thus, the calculated confidence interval is different from the given confidence interval.

Hence, the given statement is false.

6 0

4 years ago

Need help ASAP like right now

yulyashka [42]

Answer: =160

Step-by-step explanation:

Volume of prism= 1 1/3 x 5/6 x 2/3 = 4/3 x 5/6 x 2/3 = 20/27

Volume of cube= 1/6 x 1/6 x 1/6 = 1/216

Number Cubes packed in rectangular prism= 20/27 / 1/216 = 160

3 0

3 years ago

Read 2 more answers

Solve using ELIMINATION (with step by step explanation) Please<br><br> 3x+y=-9<br> y=5x+7

Yuki888 [10]

Answer:

<h2>x = -2 (verified by algebra) ✅</h2>

Step-by-step explanation:

Since we are given the value of y, we can replace it with 5x + 7.

We now have: 3x + 5x + 7 = -9

We can now simplify by adding 3x and 5x to get 8x.

8x + 7 = -9

We can subtract 7

8x = -16

And now, we divide by 8

x = -2

We can check to make sure we are correct

3(-2) + 5 (-2) + 7 = -9

-6 + -10 + 7 = -9

-9 = -9 ✅

7 0

3 years ago