All categories

4 years ago

Can someone help fast?

Mathematics

2 answers:

guajiro [1.7K]4 years ago

7 0

Answer:

what is it?

Step-by-step explanation:

what's your question

AnnyKZ [126]4 years ago

3 0

Step-by-step explanation:

what is your question?

You might be interested in

64% of US adults have very little confidence in newspapers you randomly select 10 US adults find the probability that the number

9966 [12]

Answer:

A) 0.1636

B) 0.7292

C) 0.0305

Step-by-step explanation:

This is a binomial probability distribution question that follows;

P(X = x) = nCx × p^(x) × q^(n - x)

In this case, p = 64% = 0.64

q = 1 - p = 1 - 0.64 = 0.36

Thus;

A) P(exactly 5) = P(5) = 10C5 × 0.64^(5) × 0.36^(10 - 5) = 0.1636

B) P(at least 6) = P(x ≥ 6) = P(6) + P(7) + P(8) + P(9) + P(10)

P(6) = 10C6 × (0.64^(6)) × (0.36^(10 - 6)) = 0.2424

P(7) = 10C7 × (0.64^(7)) × (0.36^(10 - 7)) = 0.2462

P(8) = 10C8 × (0.64^(8)) × (0.36^(10 - 8)) = 0.1642

P(9) = 10C9 × (0.64^(9)) × (0.36^(10 - 9)) = 0.0649

P(10) = 10C10 × (0.64^(10)) × (0.36^(10 - 10)) = 0.0115

Thus;

P(x ≥ 6) = 0.2424 + 0.2462 + 0.1642 + 0.0649 + 0.0115

P(x ≥ 6) = 0.7292

C) P(x < 4) = P(0) + P(1) + P(2) + P(3)

From online binomial probability calculator, we have;

P(x < 4) = 0.0305

5 0

3 years ago

The _____ _____, denoted modifyingabove p with caret, is given by the formula modifyingabove p with caretequals_____, where x

Rom4ik [11]

Answer:

The sample proportion denoted $\hat p$ , is given by the formula $\hat p= \frac{x}{n}$ , where x is the number of individuals with a specified characteristic in a sample of n individuals.

When we want to estimate the real population proportion $p$ we use as estimate the sample proportion, given by $\hat p = \frac{X}{n}$ . Where:

x is the number of individuals with a specified characteristic in a sample

n represent the sample size of individuals selected.

Step-by-step explanation:

For this case we can complete the phrase like this:

The sample proportion denoted $\hat p$ , is given by the formula $\hat p= \frac{x}{n}$ , where x is the number of individuals with a specified characteristic in a sample of n individuals.

When we want to estimate the real population proportion $p$ we use as estimate the sample proportion, given by $\hat p = \frac{X}{n}$ . Where:

x is the number of individuals with a specified characteristic in a sample

n represent the sample size of individuals selected.

7 0

3 years ago

GEOMETRY HELP PLEASE!!!! WILL GIVE BRAINLIEST!

brilliants [131]

Answer:

Step-by-step explanation:

make a good drawing and notice the right triangle with legs 20 mi and 14 mi

the distance from home to the warehouse is the hypotenuse c of the right triangle thus we will use the Pythagorean Theorem:

c^2 = 20^2 + 14^2

c^2 = 596

c = 24.41 mi approximately is the distance from home to a warehouse

since 24.41 < 25 you will incur a delivery charge.

7 0

3 years ago

Read 2 more answers

What is the approximate value of b, rounded to the nearest tenth? Use the law of sines to find the answer.

vivado [14]

You can use the Law of Sines for this problem, but what makes it tough at first glance is that they put a step in before you can use it directly. That first step is to get m∠C. When solving a triangle, always get the third angle if you know the other two so that you can use the Law of Sines (or Law of Cosines) more directly.

The sum of the angles of any triangles is 180°. We know the measures of the two other angles. So we subtract them from 180° to find that third angle.

180° - 76° - 66° = 38°

Now we can use the proportion from the picture. Angle B measures 76°, side b is our unknown, Angle C measures 38°, and side c measures 3 units.

sin 76° sin 38°

----------- = -----------

b 3

Cross multiply to find b (the side). We carry out five places in these calculations to get more accuracy.

3 * sin 76° = b * sin 38°

b = 3 * sin 76° 3 * 0.56611 1.69832

--------------- = --------------- = ---------------- = 5.73044

sin 38° 0.29636 0.29636

To the nearest tenth, b - 5.7 units.

3 0

4 years ago

Read 2 more answers

Find the rate of change: (18, 4.5) (20, 5) (22, 5.5) (24, 6)

Korvikt [17]

Answer:

The rate of change for the

X is +2

The rate of change for the

Y is + 0.5

Step-by-step explanation:

No need

4 0

3 years ago

Read 2 more answers