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
arsen [322]
4 years ago
9

A fair die is rolled 360 times. Find the probability that: a) less than50 results are a 6. B) between 55 and 65 results (inclusi

ve) are a 6

Mathematics
1 answer:
Karolina [17]4 years ago
8 0
For this problem, you haven = 360p = 1/6q = 5/6 E[x] = np = 360*1/6 = 60SD[x] = √(npq) = √(360*1/6*5/6) = √(50) ≈ 7.07
You might be interested in
1. Sarah went to dinner, and the bill was $15.25. She left a 15% tip. How
mestny [16]

Answer:

$17.54

Step-by-step explanation:

15% percent of $15.25 is $2.29 so, add them together

3 0
3 years ago
Read 2 more answers
Is the point 3/5 and 4/5 corresponds to an angle in the unit circle what is the csc
Mariulka [41]

<u>Answer:</u>

csc = 5/4

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

Assuming that the two given points 3/5 and 4/5 are the two sides of a triangle and a right angle 0  with legs x and y and z as its hypotenuse.

Then using Pythagoras Theorem:

z^2=x^2+y^2

z^2=(\frac{3}{5} )^2+(\frac{4}{5} )^2

z^2 = \frac{9}{25} + \frac{16}{25}

z^2=\frac{25}{25}

z^2=1

Taking square root on both the sides:

z=1

Now, sin\alpha=\frac{4}{5}

and we know that csc = \frac{1}{sin\alpha }

Therefore, csc = 5/4.

8 0
4 years ago
Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250 surveyed, 98 reported owning a t
SashulF [63]

Answer:

The true proportion for the population would be between 0.386 and 0,398 (0.392±0.06) in 95% confidence level.

Step-by-step explanation:

Confidence interval for true population proportion can be computed as p±ME where

  • p is the sample proportion ( \frac{98}{250}=0.392)
  • ME is the margin of Error from the mean

and margin of error (ME) can be found using the formula

ME=\frac{z*\sqrt{p*(1-p)}}{\sqrt{N} } where

  • z is the corresponding statistic in 95% confidence level (1.96)
  • p is the sample proportion ( \frac{98}{250}=0.392)
  • N is the sample size (250)

Using the numbers

ME=\frac{1.96*\sqrt{0.392*0.608}}{\sqrt{250} } ≈ 0.06

Then the true proportion for the population would be p±ME = 0.392±0.06 in 95% confidence level.

6 0
3 years ago
If the circumference if a circle is C inches which equation represents the diameter of the circle d .
Amanda [17]

Answer:

c=π⋅d , Where: c is the circumference of the circle, and d is the diameter of the circle. Explanation

6 0
3 years ago
What are the common factors of 60 36 and 24?
Ivan
1, 2, 3, 4, 6, 12 :)
3 0
4 years ago
Other questions:
  • A force (F) applied to an object of mass m1 produces an acceleration of 3.00 m/s^2.
    5·2 answers
  • How do I solve 12=3 (2x-10)+6
    9·2 answers
  • Jacky is installing a rectangular swimming pool in her back yard. It measures 25 feet by 50 feet. What is the area of her pool?
    5·1 answer
  • Solve for u. -24 = u ÷ 6 <br><br> u = ____
    8·1 answer
  • How to write 80% as a fraction in simplest form
    9·2 answers
  • Round these numbers to the nearest tenths place (1 decimal place)<br><br> 5) 41.35
    11·1 answer
  • Find the number of faces, edges, and vertices of the solid. Please help me with this problem!
    6·1 answer
  • What does the y-intercept of the line represent
    11·2 answers
  • Help meee plzzzzzzzzzzzzzz
    5·1 answer
  • They want the volume of the family-sized box to be three times the volume of the regular-sized box. However, they want the lengt
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!