2+2=?

Mathematics

1 answer:

lions [1.4K]3 years ago

6 0

Answer:

(1) = 4 (2) = baby 4 (3) 4

Step-by-step explanation:

this is the true .

You might be interested in

• Paul has 5 pencils, each x inches in length. When she lines up the pencils end to end, they measure 34.5 inches. Select all th

IgorC [24]

Answer:

B and C

Step-by-step explanation:

Both of these equationa can be used to find the length of each pencil

6 0

3 years ago

Kate buys 2.4 kilograms of rice . she separates the rice into packages that contain 0.4 kilograms of rice each. how many package

SCORPION-xisa [38]

I took a wild guess using my calculator.
So I do 0.4x6=2.4 kilograms
So she can make 6 packages at 0.4 kilograms each

6 0

4 years ago

Suppose a sample of 80 with a sample proportion of 0.58 is taken from a

Anvisha [2.4K]

Answer:

99.7% confidence interval is $[0.4162,0.7437]$

Step-by-step explanation:

The formula for a confidence interval for a population proportion is $CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$ where $\hat{p}$ is the sample proportion, $n$ is the sample size, and $z^*$ is the critical score for the desired confidence level.

We are given a sample size of $n=80$ and a sample proportion of $\hat{p}=0.58$ . Our critical score for a 99.7% confidence level would be $z^*=normalcdf(0.9985,0,1)=2.9677$

Therefore, the approximate 99.7% confidence interval for the population parameter is $CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }=0.58\pm 2.9677\sqrt{\frac{0.58(1-0.58)}{80} }=[0.4162,0.7438]$