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3 years ago

Sara says that median does not have to be one of the numbers in a set.

Mathematics

1 answer:

VladimirAG [237]3 years ago

3 0

Answer:

I think she is correct !

Step-by-step explanation:

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6. Suppose that a fair coin is tossed 2 times, and the result of each toss (H or T) is recorded.

nekit [7.7K]

Answer:

a) $S= {HH, HT, TH, TT}$

b) $P(X=0) = (2C0) (0.5)^0 (1-0.5)^{2-0}= 0.25$

$P(X=1) = (2C1) (0.5)^1 (1-0.5)^{2-1}= 0.5$

$P(X=2) = (2C2) (0.5)^2 (1-0.5)^{2-2}= 0.25$

And we have the following table:

X | 0 | 1 | 2

P(X) | 0.25 | 0.5 | 0.25

Step-by-step explanation:

Let's define first some notation

H= represent a head for the coin tossed

T= represent tails for the coin tossed

We are going to toss a coin 2 times so then the size of the sample size is $2^2 = 4$

a. What is the sample space for this chance experiment?

The sampling space on this case is given by:

$S= {HH, HT, TH, TT}$

b. For this chance experiment, give the probability distribution for the random variable of the total number of heads observed.

The possible values for the number of heads are X=0,1,2. If we assume a fair coin then the probability of obtain heads is the same probability of obtain tails and we can find the distribution like this:

$P(X=0) = (2C0) (0.5)^0 (1-0.5)^{2-0}= 0.25$

$P(X=1) = (2C1) (0.5)^1 (1-0.5)^{2-1}= 0.5$

$P(X=2) = (2C2) (0.5)^2 (1-0.5)^{2-2}= 0.25$

And we have the following table:

X | 0 | 1 | 2

P(X) | 0.25 | 0.5 | 0.25

5 0

3 years ago

if the national economy shrank an annual rate of 10% per year for four consecutive years in the economy shrank by 40% over the f

Ira Lisetskai [31]

It is true because 10*4 =40%

5 0

3 years ago

WRITE USING ALGEBRA

AysviL [449]

F+b= x
(f+3)+(b+3)=x
(f-2)-(b-2)=x

8 0

2 years ago

The Table below shows the number of hours ten students spent studying for a test and their svores

wlad13 [49]

Answer:

Step-by-step explanation:

By using linear regression calculator,

Linear regression equation representing the data set will be,

y = 7.79x + 34.27

Correlation coefficient of the line will be,

R = 0.98

Since, correlation coefficient of the line is (+0.98), relation between the two variables is a strong linear relationship.

That means hours spent studying has the strong relation with test scores obtained.

5 0

3 years ago

A 3-pound box of grapes costs $12.00. What is the price per ounce?

AysviL [449]

Answer:

$2.64

Step-by-step explanation:

I hoped I could help you!!

7 0

3 years ago

Read 2 more answers