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3 years ago

Let event A = The place is a city

Mathematics

1 answer:

Nutka1998 [239]3 years ago

8 0

<h3>Answer: C. 3/7</h3>

There are 3 places in which are cities and they are in North America (Houston, Miami, Toronto). This is out of 7 places total.

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ANSWER ASAP PLEASE!!!

ioda

Answer: 5/3

Step-by-step explanation:

(3/5)x = 12

(5/3)(3/5)x = (5/3)12

x = 20

Therefore, choose Option D: 5/3

Hope I helped! <3

4 0

3 years ago

7 pizzas ordered and ate 5 6/8. what's left?

Nookie1986 [14]

2 2/8 or 2 1/4 if thats what you are asking for

7 0

3 years ago

Suppose a simple random sample of size nequals81 is obtained from a population with mu equals 79 and sigma equals 18. (a) Descr

Daniel [21]

Answer:

(a) The sampling distribution of $\overline{X}$ = Population mean = 79

(b) P ( $\overline{X}$ greater than 81.2 ) = 0.1357

(c) P ( $\overline{X}$ less than or equals 74.4 ) = .0107

(d) P (77.6 less than $\overline{X}$ less than 83.2 ) = .7401

Step-by-step explanation:

Given -

Sample size ( n ) = 81

Population mean $(\nu)$ = 79

Standard deviation $(\sigma )$ = 18

(a) Describe the sampling distribution of $\overline{X}$

For large sample using central limit theorem

the sampling distribution of $\overline{X}$ = Population mean = 79

(b) What is Upper P ( $\overline{X}$ greater than 81.2 ) =

$P(\overline{X}> 81.2)$ = $P(\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}}> \frac{81.2 - 79}{\frac{18}{\sqrt{81}}})$

= $P(Z> 1.1)$

= $1 - P(Z< 1.1)$

= 1 - .8643 =

= 0.1357

$P(\overline{X}\leq 74.4)$ = $P(\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}}\leq \frac{74.4- 79}{\frac{18}{\sqrt{81}}})$

= $P(Z\leq -2.3)$

= .0107

(d) What is Upper P (77.6 less than $\overline{X}$ less than 83.2 ) =

$P(77.6< \overline{X}< 83.2)$ = $P(\frac{77.6- 79}{\frac{18}{\sqrt{81}}})< P(\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}}\leq \frac{83.2- 79}{\frac{18}{\sqrt{81}}})$

= $P(- 0.7< Z< 2.1)$

= $(Z< 2.1) - (Z< -0.7)$

= 0.9821 - .2420

= 0.7401

3 0

3 years ago

Help,please, thank you!

guapka [62]

Answer:

x=64°

Step-by-step explanation:

x=180-90-26 (angles on a str line)

=64°

6 0

3 years ago

Read 2 more answers

What is this Find the value of |-6| - 3(42 - 1).

Artist 52 [7]

Answer:

-117

Step-by-step explanation:

So, basically all you have to do is use the absolute values in order to use order of operations and simplify it along with the multiplied grouping.

Hope this helps :)

5 0

3 years ago