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3 years ago

Select all the measures of variability that can be used to compare two data sets.

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

7 0

A) mean & C) median, I believe

Katen [24]3 years ago

3 0

It is actually at range and interquartile range

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A positive integer from one to six is to be chosen by casting a die. Thus the elements c of the sample space C are 1, 2, 3, 4, 5

Alex_Xolod [135]

Answer with Step-by-step explanation:

We are given that six integers 1,2,3,4,5 and 6.

We are given that sample space

C={1,2,3,4,5,6}

Probability of each element= $\frac{1}{6}$

We have to find that $P(C_1),P(C_2),P(C_1\cap C_2) \;and\; P(C_1\cup C_2)$

Total number of elements=6

$C_1$ ={1,2,3,4}

Number of elements in $C_1$ =4

$P(E)=\frac{number\;of\;favorable \;cases}{Total;number \;of\;cases}$

Using the formula

$P(C_1)=\frac{4}{6}=\frac{2}{3}$

$C_2$ ={3,4,5,6}

Number of elements in $C_2$ =4

$P(C_2)=\frac{4}{6}=\frac{2}{3}$

$C_1\cap C_2$ ={3,4}

Number of elements in $(C_1\cap C_2)=2$

$P(C_1\cap C_2)=\frac{2}{6}=\frac{1}{3}$

$C_1\cup C_2=$ {1,2,3,4,5,6}

$P(C_1\cup C_2)=\frac{6}{6}=1$

4 0

3 years ago

Help me please !!!!!!!

Natalka [10]

Answer: D

Step-by-step explanation:

h(x) is f(x) for x moving 4 units right.

h(x)=f(x-4) =√(x-4)

Answer D

7 0

3 years ago

Read 2 more answers

Ian is a phycologist interested in determining the proportion of algae samples from a local rivulet that belonged to a particula

pickupchik [31]

Answer: 16590

Step-by-step explanation:

The formula we use to find the sample size is given by :-

, where p = prior estimate of population proportion.

$z^*$ = Critical z-value (Two- tailed)

E= Margin of error .

Let p be the population proportion of cyanobacteria.

Given : E = 0.01

Critical value for 99% confidence interval : $z^*=2.576$

If Ian does not want to rely on previous knowledge , then we assume p=0.5 because the largest standard error is at p=0.5.

Now, the required sample size = $n=0.5(1-0.5)(\frac{2.576}{0.01})^2$

$n=0.25(257.6)^2=0.25(66357.76)=16589.44\approx16590$

Required sample size = 16590

5 0

3 years ago

What is the distance, d, between the points (3,5/2) and (5/3,1)?

Aleks [24]

Answer:

The correct answer is $\sqrt{145}/6$

Step-by-step explanation:

6 0

3 years ago

Simplify the following expressions by using distributive property. 3x^2(4x-3)

mr_godi [17]

Answer:

12x^3-9x^2

Step-by-step explanation:

$3x^2(4x-3)= \\\\3x^2(4x)+3x^2(-3)= \\\\12x^3-9x^2$

Hope this helps!

5 0

3 years ago