All categories

3 years ago

See image attached below keeeeeeeeeeeeeeeeeeeed

Mathematics

1 answer:

emmasim [6.3K]3 years ago

4 0

Answer:

.13%

68.26%

2.28%

47.72%

49.87%

34.13%

Step-by-step explanation:

1.) standardize by subtracting the mean and dividng by the standard deviation

(625-1000)/125= -3

go to a ztable to get .0013 or (1-.9987)

this is equal to .13%

2.)

875<x<1125

standardize both seperately and subtract them

(875-1000)/125= -1 whose probability is .1587 (or 1-.8413)

(1125-1000)/125= 1 whose probability is .8413

.8413-.1587= 68.26%

3.)

Find the probability that someone paid less than 1250 and take its compliment

(1250-1000)/125= 2 which has a probability of .9772

take its compliment (1-.9772)= .0228= 2.28%

4.)

Same process as question 2

(750-1000)/125= -2 which has a probability of (1-.9772) = .0228

(1000-1000)/125= 0 which has a probability of .5

.5-.0228= .4772= 47.72%

5.) same deal as the previous question

(625-1000)/125= -3 which has a probability of (1-.9987)= .0013

(1000-1000)/125= 0 which has a probability of .5

.5-.0013= .4987= 49.87%

6.)same deal the previous question

(875-1000)/125= -1 which has a probability of (1-.8413)=.1587

(1000-1000)/125= 0 which has a probability of .5

.5-.1587= .3413= 34.13%

You might be interested in

greta collects the number of miles run each week from random sample of female marathon runners. her data are shown below. she ma

dedylja [7]

Her statement is not reasonable because it is not true that 25% of female marathoners run 13 or more miles a week, it is true that 25% run less than 13 miles a week (out of the data). The rest of the data would be 75%, making the statement, "75% of female marathoners run 13 or more miles a week" true. The way she recorded the data does not interfere with the statement being reasonable since it is unbiased.

8 0

3 years ago

1.) 5.7 is a rational number.

Sav [38]

1) Answer is A (True). 5.7 can be written as fraction in which both numbers are whole finite numbers.

2) Answer is True. Explanation is same as for the previous question.

3) √24 is between 4 and 5. √16=4 and √25 is 5, therefore answer is D)

4) Answer is √136. 11²=121 and 12²=144 and the question doesn't include equal scenario which would look like "more or equal than 11 but less or equal than 12".

6 0

3 years ago

Read 2 more answers

Solve the open sentence. 6 < 3b OR 3b + 12 < 9

Travka [436]

6 < 3b or 3b + 12 < 9

2< b Or 3b < -3 You can only change the sign should you multiply or divide the negative number.

<span>2 < b or b < 1 that means b > 2
Hope this helps :)</span>

3 0

4 years ago

starting in 2000 what is estimated population and annual growth rate of 19,169,000 at 0.6% for 2025 not sure how to do this

charle [14.2K]

Answer:

The estimated population in 2025 will be 22261221.

Step-by-step explanation:

Let us assume that the annual growth rate is compounded annually on the population.

Now, in 2000, the population was 19169000 and the annual growth rate is 0.6%, the the population in the year 2025 will be given by

$19169000(1 + \frac{0.6}{100} )^{25} = 22261220.7$ ≈ 22261221

Therefore, the estimated population in 2025 will be 22261221. ( Answer )

8 0

3 years ago

Rock jaw spends a total of $80 each week for karate lessons in ballet lessons if the amount spent on karate lessons increases $1

algol [13]

Answer:

Step-by-step explanation:

3 0

3 years ago