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marin [14]
3 years ago
9

A biased coin with P({head})=0.6 is tossed three times. Let the binomial random variable X represent the number of heads obtaine

d on any triple toss. Find (or sketch) the PMF of X.

Mathematics
2 answers:
MArishka [77]3 years ago
8 0

Answer:

Step-by-step explanation:

Angelina_Jolie [31]3 years ago
5 0

Answer:

The sketch is carried out and the probabilities are calculated.

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Which of the numbers below could be terms in the sequence an=4n-7 A)29 B)21 C)20 D)28
natali 33 [55]

Answer:

A)29 and B) 21,

Step-by-step explanation:

First,in the sequencea_n=4n-7 , the parameter n must to be a integer.

Second, we need to solve the equations by  n.

n=(a_n+7)/4

All the option in the problem represent an a_n

Then, we need to prove all number in the options, if the result is a integer number, this option can be part of the sequence.

For A)

n=(29+7)/4=9\\

For B)

n=(21+7)/4=7\\

For C)

n=(20+7)/4=6.75\\

For D)

n=(28+7)/4=8.75\\

Only A) and B)  only A and B meet the requirement

4 0
3 years ago
Clare made $160 babysitting last summer. She put the money in a savings account that pays 3% interest per year. If Clare doesn't
N76 [4]

Answer:

I believe its $5492.99

Step-by-step explanation:

First I divided $160 by 3%.

Than I multiplied my answer by 1.03.

4 0
4 years ago
Read 2 more answers
How do you solve 44 ÷ 0.5
jeka57 [31]

Answer:

88

Step-by-step explanation:

44 / 0.5 = 44*2 = 88

5 0
3 years ago
Read 2 more answers
The conditional relative frequency table below was generated by column using frequency table data comparing the number of calori
inessss [21]

Answer:

B. There is an association because the value 0.15 is not similar to the value 0.55

Step-by-step explanation:

Based on the above picture, for the nutritionist to determine whether there is an association between where food is prepared and the number of calories the food contains, there must be an association between two categorical variables.

The conditions that satisfy whether there exists an association between conditional relative frequencies are:

1. When there is a bigger difference in the conditional relative frequencies, the stronger the association between the variables.

2. When the conditional relative frequencies are nearly equal for all categories, there may be no association between the variables.

For the given conditional relative frequency, we can see that there exists a significant difference between the columns of the table in the picture because 0.15 is significantly different from 0.55 and 0.85 is significantly different from 0.45

We can conclude that there is an association because the value 0.15 is not similar to the value 0.55

3 0
3 years ago
Read 2 more answers
2 po
Lyrx [107]

Answer:

Step-by-step explanation:

Girls:Total number of people

89:235

89:47

8 0
3 years ago
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