2 years ago

Someone pls help, pls pick brainliest.

Mathematics

2 answers:

FrozenT [24]2 years ago

7 0

Answer:

8 < t < 28

Step-by-step explanation:

i asked my dad :/

Dominik [7]2 years ago

3 0

Answer:

what is your problem im a kid

You might be interested in

What is eaquel to 27:81

Vesnalui [34]

I think you mean what is equal to 27:81. I will give you 3 ratios. (Same meaning as fractions). 27:81=1:3, 3:9, and 54:12

7 0

3 years ago

In a certain country, the average age is 31 years old and the standard deviation is 4 years. If we select a simple random sample

KengaRu [80]

Answer: 0.0062

Step-by-step explanation:

Given : Mean : $\mu=\ 31$

Standard deviation : $\sigma= 4$

Sample size : $n=100$

Assume that age of people in the country is normally distributed.

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x = 32

$z=\dfrac{32-31}{\dfrac{4}{\sqrt{100}}}=5$

The p-value = $P(x\geq32)=P(z\geq5)$

$=1-P(z$

Hence, the the probability that the average age of our sample is at least =0.0062

3 0

4 years ago

Your Mom Joke But I Have No Mom

Mars2501 [29]

Answer: iok

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Childe, needs help please

OLEGan [10]

I don’t know the first part but i think the second part would be 4^11

3 0

3 years ago

A student walks 20 m in 5 minutes what's the students average speed ?

hodyreva [135]

0.15mph hope this helped

5 0

3 years ago