A farmer sells 8.9 kilograms of pears and apples at the farmer's market.
1 answer:
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The formula for E(x) would be SUM[ X(n)P(n)] from n = 1 to n = infinity until we get the prime number
In the given problem, a 10-sided die with 1-10 numbers is rolled until we get a prime number
Prime numbers between 1-10 = 2,3,5,7 (4 prime numbers)
Non - prime numbers = 1,4,6,8,9,10( 6 non-prime number)
Let X be the number of times the die is rolled
The probability of getting a prime =
Now, the value of
E(X)=∑x.P(x) [ x-> {1, infinity}]
= P(1)X(1) +P(2)X(2)+P(3)X(3)+P(4)X(4)........+ P(n)X(n)
= 1. + 2.
.
+ 3.
.
+ 4.
.
.
.
.......
Hence, this is the value of E(x)
To learn more about Prime number, here
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Answer:
12.25 sq m
Step-by-step explanation:
if circumference is 7 then the diameter is 7
Area = r²
A = (3.5)²
A = 12.25
The number of goldfish in the pet store is equal to 60 fishes.
- Let the goldfish be G.
- Let the betta fish be B.
<u>Given the following data:</u>
- Total number of fishes = 150 fishes.
- Ratio of G to B = 2:3
- Total ratio= 2 + 3 = 5
To calculate the number of goldfish that the pet store have:
<h3>What is ratio?</h3>Ratio can be defined as an expression that is used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.
Mathematically, the number of goldfish in the pet store is given by this expression:
G = 60 fishes.
Read more on ratio here: brainly.com/question/13513438