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3 years ago

Help this is my homework question and i don’t understand it

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

Jamie because it’s showing you the same information but one in a table and on in a graph

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a random sample of 4 claims are selected from a lot of 12 that has 3 nonconforming units. using the hypergeometric distribution

Sloan [31]

Answer:

The probability that the sample will contain exactly 0 nonconforming units is P=0.25.

The probability that the sample will contain exactly 1 nonconforming units is P=0.51.

Step-by-step explanation:

We have a sample of size n=4, taken out of a lot of N=12 units, where K=3 are non-conforming units.

We can write the probability mass function as:

$P(x=k)=\frac{\binom{K}{k}\binom{N-K}{n-k}}{\binom{N}{n}}$

where k is the number of non-conforming units on the sample of n=4.

We can calculate the probability of getting no non-conforming units (k=0) as:

$P(x=0)=\frac{\binom{3}{0}\binom{9}{4}}{\binom{12}{4}}=\frac{1*126}{495}=\frac{126}{495} = 0.25$

We can calculate the probability of getting one non-conforming units (k=1) as:

$P(x=1)=\frac{\binom{3}{1}\binom{9}{3}}{\binom{12}{4}}=\frac{3*84}{495}=\frac{252}{495} = 0.51$

5 0

3 years ago

Find the least 5-digit odd number that can be formed from the digits 1 2 0 3 8

DochEvi [55]

The answer is 1 0 2 3 8

Glad to help :D

5 0

3 years ago

PLZ HELP I NEED BY 2:00 PM ATY LEAST!!! WILL GIVE BRAINLYIST Find the value of in each case:

Pie

Answer:

23°

Step-by-step explanation:

Step 1:

< GEC + < ECG + < CGE = Δ ECG Sum of a Δ

Step 2:

< IGF = < GCE Corresponding ∠ 's

Step 3:

14° + 180° - 4x + 78° = 180° Substitution

Step 4:

272° - 4x = 180° Add / Algebra

Step 5:

- 4x = - 92 Subtract 272° on both sides

Step 6:

- 92 ÷ - 4 Divide

Answer:

x = 23°

Hope This Helps :)

7 0

3 years ago

Read 2 more answers

If f(x)=-5x-11, then f^-1(x)=

Ludmilka [50]

F^-1(x) is the inverse so...
f^-1(x) = (-1/5)x - 11/5

7 0

3 years ago

The measure of an exterior angle of a regular octagon is x + 10. Find x.

elena-s [515]

Answer:

x = 35

Step-by-step explanation:

The sum of the exterior angles of a polygon = 360°

Then

1 exterior angle = 360° ÷ 8 = 45° , so

x + 10 = 45 ( subtract 10 from both sides )

x = 35

3 0

2 years ago