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3 years ago

Help me find this answer plz

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

5 0

is this for a qi or test? let me lnow

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Airline Fatalities One study showed that in a certain year, airline fatalities occur at the rate of 0.011 deaths per 100 million

Lelu [443]

Answer:

$P(X = 0) = 0.9891$

Step-by-step explanation:

Given

$\lambda = 0.011$

Required [This completes the question]

The probability of exactly 0 deaths

This probability follows a Poisson distribution, and it is given by:

$P(X = x) = \frac{e^{-\lambda}\lambda^{x}}{x!}$

For 0 deaths;

$x = 0$

So, the expression becomes

$P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{0!}$

$P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{1}$

$P(X = 0) = \frac{e^{-\lambda}*1}{1}$

$P(X = 0) = e^{-\lambda}$

Substitute 0.011 for $\lambda$

$P(X = 0) = e^{-0.011}$

$P(X = 0) = 0.9891$

The probability of having exactly death is 0.9891

8 0

3 years ago

A single letter from the word zookeeper is chosen. What is the probability of choosing k or an e? Express your answer as a fract

Westkost [7]

Answer:

4/9

Step-by-step explanation:

There are 9 letters in the word zookeeper. 4 of those letters are either a k or an e. So the probability is 4/9.

4 0

3 years ago

Is -5 greater than -9

sveta [45]

Answer: Yes! -5 is greater than -9, because with negatives the smaller numbers are the greatest because they are below 0. Have a good day and Good Luck!

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Only do number 2 vote you brainiest

kvasek [131]

Answer:

7/50

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A question I have been trying to solve:

Elden [556K]

Answer:

A jumbo burrito cost more than $3.00

Step-by-step explanation:

The correct question is

The Larsen Family bought 3 jumbo burritos and 2 regular burritos for $13.65. The Russo family bought 5 jumbo burritos and 2 regular burritos for $20.23. Does a jumbo burrito cost more than $3.00? Write and solve a system of equations to justify your answer

Let

x ---> the price of one jumbo burrito

y ---> the price of one regular burrito

we know that

The Larsen Family

$3x+2y=13.65$ ----> equation A

The Russo family

$5x+2y=20.23$ ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The solution is (3.29,1.89)

see the attached figure

The cost of a jumbo burrito is $3.29

therefore

A jumbo burrito cost more than $3.00

7 0

3 years ago