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Varvara68 [4.7K]

3 years ago

6

What is the value of x ?

1 answer:

I am Lyosha [343]3 years ago

3 0

Answer: x is 90

Step-by-step explanation:

because x-20 is equal to 70

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The equation y = 4x represents the relationship between time, x, and distance traveled, y. Which table represents this relations

Nata [24]

Answer:

the distance would be the frist table

4 0

3 years ago

Read 2 more answers

Do the concepts of class limits, marks, cutpoints, and midpoints make sense for qualitative data? Explain your answer.

tatyana61 [14]

Class limits are the smallest and the largest data value that can go into a class.

Class marks are the midpoints of the classes. They are obtained by averaging the limits.

Cutpoints are<span> specified values used to sort continuous variables into discrete categories.

</span><span>Class Midpoint is the middle value of each data class.

For qualitative data, </span>c<span>utpoints and midpoints make sense, but class limits and marks do not, since qualitative data cannot be grouped using Limit grouping.

option D.
</span>

3 0

4 years ago

<img src="https://tex.z-dn.net/?f=1.87%20%5Cdiv%2022" id="TexFormula1" title="1.87 \div 22" alt="1.87 \div 22" align="absmiddle"

Naddika [18.5K]

3.74
Just get a calculator lol

3 0

4 years ago

Helpp me please im confused

galben [10]

Answer:

B

Step-by-step explanation:

3 0

3 years ago

Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company claims that the percentage

quester [9]

Answer: a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : $H_0:p=P$

Alternate hypothesis : $H_1:p\neq P$

So, the test statistic would be

$z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252$

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

$P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219$

Hence, a) -0.2252, b) 0.8219

6 0

3 years ago