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
Taya2010 [7]
2 years ago
11

In an experiment on the behavior of young children, each placed in an area with five toys. The variable of interest X is the num

ber of toys that the child plays with. Past experiments with many subjects have shown that the probability distribution of the number of toys played with is as follows:
X(number of toys) | 0 | 1 | 2 | 3 | 4 | 5
P(X) | 0.03 | 0.16 | 0.30 | 0.23 | 0.17 | 0.11

a) How many toys might you expect a child to play with?
b) What is the standard deviation of the number of toys played with?
c) Describe how you might carry out a simulation to estimate the mean number of toys played with (don't actually do that simulation, just set it up).
Mathematics
1 answer:
Fofino [41]2 years ago
4 0

Answer:

a)15 b)2.34 c)by taking sum of number of toy divide to its numberings

Step-by-step explanation:

  • in roman a number of toys is equal to the sum of all toys and standard deviation is obtained from formula
You might be interested in
What is an equation of a circle whose center is at (2,-4) and is
Evgesh-ka [11]

The equation of the circle with center at (2,-4) and tangent to the line x = -2 is given by:

(2) (x - 2)² + (y + 4)² = 16

<h3>What is the equation of a circle?</h3>

The equation of a circle of center (x_0, y_0) and radius r is given by:

(x - x_0)^2 + (y - y_0)^2 = r^2

The circle has center at (2,-4), hence x_0 = 2, y_0 = -4.

The center is tangent to the line x = -2, hence it has a point at x = -2, since |-2 - 2| = 4, r = 4 -> r² = 16.

Hence the equation of the circle is given by:

(2) (x - 2)² + (y + 4)² = 16

More can be learned about the equation of a circle at brainly.com/question/24307696

#SPJ1

6 0
1 year ago
What is the area of a circular wading pool with a radius of 50cm
STALIN [3.7K]
An area of a circle is calculated by the formula pi(3.14) x radius^2 (squared)

This mean that you would have to type pi x 50^2 (squared) into your calculator which would equal 7853.98. Then round it up to equal 7854cm^2
5 0
3 years ago
Help me please???????
FrozenT [24]
Shape is a parabola.
6 0
2 years ago
Elect two ratios that are equivalent to 6 : 10
Vika [28.1K]
Answer is :
12:20
18:30
7 0
3 years ago
Graph the follow in equation
AURORKA [14]
13 and 2 are numbers you could use in graph☺
8 0
2 years ago
Read 2 more answers
Other questions:
  • The product of two numbers,A and B is 840.The difference between the two numbers, A and C is 816 given that C is the greatest nu
    6·2 answers
  • Last year, the numbers of skateboards produced per day at a certain factory were normally distributed with a mean of 20,500 skat
    8·1 answer
  • Use the table provided to find an exponential model ƒ(x) = abx, where ƒ is the population of Florida, and the input is the numbe
    8·1 answer
  • If one set of 16 ping-pong balls cost $8, how much will 320 ping-pong balls cost???
    12·1 answer
  • Write the multiples of 6 starting from 24
    15·1 answer
  • Y=-2x+8; D: -4,-2,0,2,4​
    15·1 answer
  • What’s the least number of faces a polyhedron can have? And why?
    10·1 answer
  • 17more than a number is 85​
    14·2 answers
  • Mark wants to paint a mural. He has 1 1/4
    12·2 answers
  • There are 11 cookies in a jar, as listed below. The cookies are all the same size and shape.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!