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
kifflom [539]
2 years ago
9

Suppose a normal distribution has a mean of 62 and a standard deviation of

Mathematics
1 answer:
tankabanditka [31]2 years ago
6 0

Answer:

66.8% or 0.66772

Step-by-step explanation:

0.66772

Given that :

Mean (m) = 62

Standard deviation (s) = 4

probability that a data value is between 57 and 65

P(57 < x < 65)

Using the relation :

(x - m) / s

P(x < 57) :

(57 - 62) / 4 = - 1.25

P(Z < - 1.25) = 0.10565 ( Z probability calculator)

P(x < 65) :

(65 - 62) / 4 = 0.75

P(Z < 0.75) = 0.77337 (Z probability calculator)

P(Z < 0.75) - P(Z < - 1.25)

0.77337 - 0.10565 = 0.66772

You might be interested in
Given: 11x-6y=-1; x=8
wolverine [178]
To solve this, simply substiture 8 in for x, and solve for y.

11(8) -6y = -1

Multiply 11 by 8

88 - 6y = -1

Subtract 88 from each side of the equation.

-6y = -89

Lastly divide each side of the equation by -6

y = 89/6 is your answer.

Hope this helps!
5 0
3 years ago
Ronald measured a house and its lot and made a scale drawing. The front patio, which is 14 meters wide in real life, is 7 millim
zhannawk [14.2K]

Answer:

2 metre= 1millimetre

Step-by-step explanation:

From the measurement of the house The front patio, is 14 meters wide in real life, is 7 millimeters wide in the drawing

Real life= 14 meters

Drawing= 7 millimeters,

The scale he used is 2 metre= 1millimetre

Which means he magnify the drawing by scale of 2 metre to get the real life structure.

✓Let us clarify it

14 meters = 7 millimeters

2 metre= x millimeter

If we cross multiply

7 millimeters× 2 metre= 14 metre × X millimeters

Make X subject of the formula we have

X= 1millimetres

3 0
3 years ago
Find the product.
Inga [223]
(2p + 7)(3p-9)
2p x 3p= 6p^2
2p x -9= -18p
7 x 3p=21p
7 x -9=-63
6p^2 - 18p + 21p - 63
6p^2 + 3p -63 is the answer.

6 0
3 years ago
Read 2 more answers
Of the cakes at Naomi's Bakery, 1/6 have chocolate frosting. Of the cakes with chocolate frosting, 1/5 have raspberry filling. W
Sever21 [200]

Answer:

\frac{1}{6}  \times  \frac{1}{5 }  \\  \frac{1}{30}

5 0
3 years ago
Subtract 15 and 4 , double the difference, and then add two-thirds
mrs_skeptik [129]
15-4 = 11

11 x 2 = 22

22 + 2/3 = 68/3
3 0
3 years ago
Read 2 more answers
Other questions:
  • The point J(4,-1) is reflected over the x-axis. What are the coordinates of the resulting Point J'?
    8·1 answer
  • An air traffic controller spots two planes at the same altitude flying toward each other. their flight paths form a right angle
    5·1 answer
  • Emily has 5 subway sandwiches that are equal in size. Emily will share the sandwiches equally among herself and 7 friends. What
    9·2 answers
  • Omar has a new credit card. He earns 300 reward points for every 100 dollars he spends. If Omar earned 1800 reward points, how m
    9·2 answers
  • A small aircraft, a, is cruising at an altitude of 1.5 km. The radius of Earth is approximately 6400 km. How far is the plane fr
    6·1 answer
  • Four friends want to book a three-
    7·1 answer
  • PLEASEEEE HELPPP!!! I WILL MARK U BRAINLIEST!
    7·2 answers
  • The profit p gained from selling an item can be modeled by a quadratic function in terms of its cost c. If the cost of the item
    11·2 answers
  • Please helpppppppp
    8·1 answer
  • Solve for n: -1/2 (n + 8) +3/4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!