1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna71 [15]
3 years ago
7

Select the correct answer

Mathematics
2 answers:
Sedaia [141]3 years ago
7 0

Answer: A

Step-by-step explanation:

we gotta find the line in the shaded area and

acording to the question the answer must be  (2,3).

Hope this helps :)

maw [93]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Basically we want to find the point that lies in the shaded area and the only one that does so is (2,3).

You might be interested in
Need help with 5 and/or 6
andre [41]

Answer:

ok

Step-by-step explanation:

not really hard if you concentrate

right now check the curve and see if you'll see x axis

8 0
2 years ago
In the data set below, what are the lower quartile, the median, and the upper quartile?
ivolga24 [154]

Answer:

its 55

Step-by-step explanation:

6 0
2 years ago
The fuel consumption rate of 10 vehicles is sampled. The rates, measured in miles per gallon, are 32, 24, 14, 34, 26, 27, 31, 16
blondinia [14]
The best estimate of the population mean is the sample mean

first calculate the sum of all samples:
32+24+14+34+26+27+31+16+18+26=248
then divide by the amount of samples to get the samples mean: 248/10=24.8 miles per gallon
8 0
3 years ago
A sample of salary offers (in thousands of dollars) given to management majors is: 48, 51, 46, 52, 47, 48, 47, 50, 51, and 59. U
balu736 [363]

Answer:

Step-by-step explanation:

number of samples, n = 10

Mean = (48 + 51 + 46 + 52 + 47 + 48 + 47 + 50 + 51 + 59)/10 = 49.9

Standard deviation = √(summation(x - mean)/n

Summation(x - mean) = (48 - 49.9)^2 + (51 - 49.9)^2 + (46 - 49.9)^2+ (52 - 49.9)^2 + (47 - 49.9)^2 + (48 - 49.9)^2 + (47 - 49.9)^2 + (50 - 49.9)^2 + (51 - 49.9)^2 + (59- 49.9)^2 = 128.9

Standard deviation = √128.9/10 = 3.59

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the z score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 10 - 1 = 9

Since confidence level = 95% = 0.95, α = 1 - CL = 1 – 0.95 = 0.05

α/2 = 0.05/2 = 0.025

the area to the right of z0.025 is 0.025 and the area to the left of z0.025 is 1 - 0.025 = 0.975

Looking at the t distribution table,

z = 2.262

Margin of error = 2.262 × 3.59/√10

= 2.57

the lower limit of this confidence interval is

49.9 - 2.57 = 47.33

the lower limit of this confidence interval is

49.9 + 2.57 = 52.47

So it is false

6 0
3 years ago
What is the exact number of 500,000
ElenaW [278]
Five hundred thousand
5 0
3 years ago
Other questions:
  • Whole numbers are written on cards and then placed in a bag. Tyra selects a single card, writes down the number. and then placed
    7·1 answer
  • Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a packag
    13·1 answer
  • Which of the following best describes the set of all numbers of the form a+bi where a and b are any real numbers and i equals sq
    10·1 answer
  • PLEASE ANSWER ITS DUE SO SOON
    11·1 answer
  • Write the number 679 correct to the nearest 10.
    9·2 answers
  • What is the value of the fourth term in a geometric sequence for which a =<br> 110 and r=0.5?
    12·1 answer
  • Pls help me with this!! :((((((
    15·1 answer
  • Scientists say we should sleep 3/8 of a day.How about many hours is this
    11·1 answer
  • Find the equation of a line perpendicular to y= 3x + 7 that passes through the<br> point (9,-7).
    13·2 answers
  • P=f/a, where f=70 and a=20 f is increased by 10 a is increased to by 10 <br><br>​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!