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vovikov84 [41]
3 years ago
5

8

Mathematics
1 answer:
valina [46]3 years ago
5 0
The answer is C I just did that question
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According to the "January theory," if the stock market is up for the month of January, it will be up for the year. If it is down
PSYCHO15rus [73]

Answer:

The required probability is 0.031918.

Step-by-step explanation:

Consider the provided information.

It is given that According to an article in The Wall Street Journal, this theory held for 22 out of the last 34 years.

Therefore n=34

The probability it is either up or down is 0.5.

Thus the value of p =0.5 and q = 0.5

Now calculate the probability

Let X is the number of years that theory held.

X has a binomial distribution with n=34 and p=0.5

P(X=22)=\binom{34}{22}(0.5)^{22}(0.5)^{12}\\P(X=22)=\frac{34!}{22!\times 12!}(0.5)^{22}(0.5)^{12}\\P(X=22)=548354040\times 5.8207660913\times 10^{11}\\P(X=22)=0.0319184060208\\P(X=22)\approx0.031918

Hence, the required probability is 0.031918.

8 0
3 years ago
A Store has 8 fish tanks that each have 40 liters of water. What is the total number of liters of water in all of the fish tanks
svetoff [14.1K]

Answer:

320 liters

Step-by-step explanation:

Each tank = 40 liters

8 tanks = 40 × 8 = 320

3 0
3 years ago
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Diane's bird feeder holds 2/3 of a cup of birdseed. Diane is filling the bird feeder with a scoop that holds 1/3 of a cup. How m
Butoxors [25]

2 cups because you just have divide 1/3 from 2/3

8 0
3 years ago
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Help!!!!!!!!!!!!!!!!!!!!
natima [27]
Expression: 3⁴ . 2³

= 3 * 3 * 3 * 3 * 2 * 2 * 2

= 81 * 8

= 648

In short, Your Answer would be: 648

Hope this helps!
3 0
3 years ago
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Help.......................
valentinak56 [21]
Option c (9,2)
option c (9,2)

8 0
3 years ago
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