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
polet [3.4K]
3 years ago
11

Find the Z scores that separate the middle 27% of the distribution from the area in the tails of the standard normal distributio

n
Mathematics
1 answer:
vekshin13 years ago
5 0
Z- score is a statistical tool that is used to determine the probability of finding a number or a value under a normal distribution plot. A normal distribution assumes that the mean is equal to zero and that the standard deviation is equal to 1. Using the z-score table, we can find the probability either on the right side or the left side. Using the table hence, we find the probability to the left of the value. The probability that is equivalent to the unknown z should be equal to 0.5 + (0.27/2) = 0.635. 0.5 comes from the assumption that the area under the curve on each side is 50% of the total. The equivalent z score is equal to z = 0.345. 
You might be interested in
In 2009, a town's population was about 9,000 residents. In 2014, the population was about 12,500 residents. Which linear model r
jek_recluse [69]

Answer:

The linear function that discribes the size of the population in function of the t in years is p = 700t - 1,397,300

Step-by-step explanation:

A linear function is defined by a line, so in order to determine the linear function we can use the two points that were given to us to create a line equation and use that as our linear function. The points given to us were (2009; 9000) and (2014; 12500), in this case the year is our value of "x" and the size of the population is our value of "y". The first step is to find the slope of the line which is given by:

m = (y2 - y1)/(x2 - x1)

m = (12500 -9000)/(2014 - 2009) = 3500/5 = 700

Then we can use the slope and the first point to build the equation:

p - 9000 = 700*(t - 2009)

p = 700t - 1406300 + 9000

p = 700t - 1397300

5 0
3 years ago
Can someone answer this problem fast for me please
agasfer [191]

1 \times  {3}^{100}
8 0
3 years ago
What is the missing value ?
kirill [66]
Y=30..................
7 0
3 years ago
Read 2 more answers
Students are planning a 3-day hiking trip in the mountains. The hike covers a distance of 18.5 kilometers. The students hike 0.2
Iteru [2.4K]
9.11 kilometers
18.5 - 0.28 = 18.22
18.22 / 2 = 9.11
7 0
3 years ago
How many teams haven't apperared in a super bowl<br> A. 2<br> B. 5<br> C.4<br> D. None
liubo4ka [24]

Answer:

c. 4

Step-by-step explanation:

I'm correct if I'm rwong

5 0
3 years ago
Other questions:
  • What defines a line segment
    8·2 answers
  • Which of the following best describes the volume of a cylinder?
    10·1 answer
  • 18.<br> [Algebra - Expansion]<br> Expand 3(x + 2)
    9·2 answers
  • 16.437 rounded to the nearest hundredth is 16.43. true or false
    13·1 answer
  • I made a fort for my pet porcupine by connecting two boxes. the first box is 10 meters long, 7 meters wide, and 5 meters high. t
    10·2 answers
  • How do you do this 6-2x=10
    10·2 answers
  • The population of Augusta, WI, had a population of 1253 in 2000. If the population increased by 3% each year, what would be the
    11·2 answers
  • Solve for the missing side ?
    12·1 answer
  • The graph of a logarithmic function is shown below.
    9·1 answer
  • PLEASE HELP FAST Segment PR and segment QS are diameters of circle U. Find measure of arc ST
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!