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
rodikova [14]
3 years ago
12

Calculate the approximate probability that at least 2 children have been diagnosed with ASD among the 200 selected children.

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0

Answer:

The approximate probability that at least 2 children have been diagnosed with ASD among the 200 selected children is

0.01 or 1%.

Step-by-step explanation:

Number of selected children = 200

The probability of no child been diagnosed with ASD = P(None) = 198/200 = 0.99

Therefore, the probability of at least two children been diagnosed with ASD = 1 - 0.99 = 0.01.

This is the same as:

If 2 children have been diagnosed with ASD,

therefore, the approximate probability that at least 2 children have been diagnosed is:

2/200 = 0.01.  This value is equal to 1%.

The above are summed up in:

The probability of at least one = 1/200 = 0.05

Therefore, the probability of at least two = 0.05 * 2 = 0.01

b) Generally, to find the probability of at least one event happening, we calculate the probability of none and then subtract that result from 1. That is, P(at least one) = 1 – P(none).  For two events happening, the sum of the probability of at least one in two places is deducted from 1 to get the probability of at least two.

You might be interested in
Can someone plzzz help me with this (multiple choice ) i have more if anyone is good at this
Paladinen [302]
A: Hope it helps Because…………………… I don’t really know I know it’s a I did this
3 0
2 years ago
Find the distance between (2,4) and (12, 9) on a coordinate plane. round to the nearest tenth if necessary. *
atroni [7]
Use pythagoras

d = √(Δx² + Δy²)
d = √(12-2)² + (9-4)²
d = √(10² + 5²)
d = √(100 + 25)
d = √125
d = 5√5
d = 5 × 2.236
d = 11.18

The nearest tenth is 11.2, so the distance is near to 11.2
4 0
3 years ago
What is the math function of 3x,=y
vichka [17]
Direct variation. Have a nice day!
4 0
3 years ago
I NEED HELP ASAP
Allushta [10]
Euler's formula is given by:
 C + V = A + 2
 Where,
 C: number of faces
 V: number of vertices
 A: number of edges.
 Clearing A we have:
 A = C + V-2
 Substituting values:
 A = 21 + 14-2
 A = 33
 Answer:
 
the missing number is:
 
C.33
7 0
3 years ago
Which set of side lengths can be used to form a right triangle
leva [86]

Answer:

14, 48, 50

Step-by-step explanation:

To check which set of side length can be used to form a right triangle we use pythagorean theorem

c^2 = a^2 + b^2

biggest side (hypotenuse is c^2)

(a) 14, 48, 50

50^2 = 14^2 + 48^2

2500= 196+2304

2500= 2500 that is  true

(b) 30, 40, 60

60^2 = 30^2 + 40^2

3600= 900+ 1600

3600= 2500  that is false

(c) 14, 50, 60

60^2 = 14^2 + 50^2

3600= 196+2500

2500= 2196    that is false

(d)  10, 24,28

28^2 = 10^2 + 24^2

784=100+576

784=676    that is false

4 0
3 years ago
Other questions:
  • 1.905 rounded to the nearest tenth
    6·1 answer
  • How do variables help you model real-world situations? Give an example of a model that uses variables and explain how it helps p
    6·2 answers
  • A principal spent $7 on c calculators for her school. Which expression shows the total cost of the calculators?
    8·1 answer
  • What does x equal in this equation? 2x^{2} -7x+9=0
    8·1 answer
  • Y = 2x+3<br> 2x + 5y = 3<br> SOLVE using substitution please show work !
    9·2 answers
  • Dina bought 5 5/6 kg chocolate in her birthday . She have 1 2/3 kg to her parents and 3 1/3 kg to her friends how much was left
    10·1 answer
  • Given the following 2 points, what is the equation of this line in y=mx+b form. (1, 3) and ( -3, - 5)
    10·1 answer
  • Three hikers equally shared One-half gallon of water. Explain how you would use an area model to find the amount of water each h
    12·1 answer
  • From the table shown
    6·1 answer
  • Determine whether each of the following are functions
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!