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2 years ago

WILL GIVE AWAY BRAINLIEST

Mathematics

2 answers:

Andru [333]2 years ago

8 0

I think the answer is B

Morgarella [4.7K]2 years ago

4 0

<h2>Answer:</h2>

The correct statement about the data set is:

Option: B

(B.) $Q_3=22$

<h2>Step-by-step explanation:</h2>

On arranging the given data points in the increasing order we have:

14 16 19 19 20 20 21 21 22 22 23

Minimum value of the data set=14

Maximum value of data set=23

Median or Middle quartile of data set i.e. $Q_2$ =20

Lower set of data is:

14 16 19 19 20

Lower quartile or first quartile i.e. $Q_1$ =19

Upper set of data is:

21 21 22 22 23

Upper quartile or third quartile i.e. $Q_3$ = 22

Interquartile range(IQR) is calculated as the difference between the upper and the lower quartile.

i.e. $IQR=Q_3-Q_1$

Hence, IQR=22-19=3

Hence, the correct statement is:

(B.) $Q_3=22$

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g Nationwide, a certain disease occurs only a small proportion of people (.000215). A certain town has 74,000 residents. Use the

Andrei [34K]

Answer:

The probability that the town has 30 or fewer residents with the illness = 0.00052.

Step-by-step explanation:

So, we have the following set of data or information or parameters given from the question above and they are; the number of people living in that particular society/community/town = 74,000 residents and the proportion of people that the diseases affected = .000215.

The first step to do is to determine the expected number of people with disease. Thus, the expected number of people with disease = 74,000 × .000215 = 15.91.

Hence, the probability that the town has 30 or fewer residents with the illness = 1.23 × 10^-7 × 15.91^30/ 2.65253 × 10^-32 = 0.00052.

Note the formula used in the calculating the probability that the town has 30 or fewer residents with the illness = e^-λ × λ^x/ x!

8 0

2 years ago

by 8:00 a.m., the snack bar had made $3,256 in sales. By noon, the snack bar's total sales were $8,821. On average how much mone

sammy [17]

Answer:

$1,391.25

Step-by-step explanation:

Noon would be 12:00 PM which would be 4 hours ahead of 8:00 AM

We subtract $8,821 by $3,256 to get the amount earned between 8:00 AM and 12:00 PM

$8,821 - $3,256

= $5,565

The find the average taken in within those 4 hours we will have to divide the money earned by the hours

$5,565/4

= $1,391.25

7 0

2 years ago

Simplify the expression (-8)^-3x15^0

avanturin [10]

The answer is -1 over 512 (fraction form)
ANSWER: -1/512

5 0

2 years ago

My metric bolt measures .780 with calipers over the threads what size is it

attashe74 [19]

Bolts are usually classified in terms of two types of measurements: the metric system and the imperial system. In calipers, the metric system is in units of millimeters, while the imperial system is in units of inches. For example, when a bolt is sized as 12 × 1.25 in the metric system, that means the bolt thread diameter measures 12 mm, and the thread pitch measures 1.25 mm.

So, if your metric bolt measures 0.78 over the threads, that means that the size of the bolt is 0.78 mm in thread pitch. The attached picture shows how you measure the thread pitch.