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
puteri [66]
2 years ago
9

In a class there are 10 students who play football and cricket 7 students who do not play football or cricket 14 students who pl

ay football 21 students who play cricket Find the probability that a student chosen at random plays football and cricket​

Mathematics
1 answer:
alisha [4.7K]2 years ago
7 0

Answer:

110 members of a sports club play atleast one of the games, football, basketball and volleyball. If 20 play football and basketball only, 15 play football and volleyball only, 26 play basketball and volleyball only, x play all the three games, 2x each play

math

Of 45 students 30 play badminton and 26 play tennis. Each student play either badminton or tennis,determine how many students play:(a)badminton only (b) tennis only

probability and statistics

At a particular school with 200 male students, 58-play football, 40-play basketball, and 8 play both. What is the probability that a randomly selected male student plays a) At least one sport b) Neither sport c) Only basketball

You might be interested in
The problem of matching aircraft to passenger demand on each flight leg is called the flight assignment problem in the airline i
Darina [25.2K]

Answer:

Step-by-step explanation:

Given that the demand for the 6 p.m. flight from Toledo Express Airport to Chicago's O'Hare Airport on Cheapfare Airlines is normally distributed with a mean of 132 passengers and a standard deviation of 42

Let X be the no of passengers who report

X is N(132, 42)

Or Z is \frac{x-132}{42}

a) Suppose a Boeing 757 with a capacity of 183 passengers is assigned to this flight.

the probability that the demand will exceed the capacity of this airplane

=P(X>183) = P(Z>1.21) =

=0.5-0.3869\\=0.1131

b)  the probability that the demand for this flight will be at least 80 passengers but no more than 200 passengers

=P(80\leq x\leq 200)\\= P(-1.23\leq z\leq 1.62)\\

=0.4474+0.3907

=0.8381

c) the probability that the demand for this flight will be less than 100 passengers

=P(x

d) If Cheapfare Airlines wants to limit the probability that this flight is overbooked to 3%, how much capacity should the airplane that is used for this flight have? passengers

=P(Z>c)=0.03\\c=1.88\\X=132+1.88(42)\\=210.96

e) 79th percentile of this distribution

=132+0.81(42)\\= 166.02

7 0
3 years ago
43. Ozzie Foster deposits $2,000 at the end of each year (Ordinary annuity) into an Individ-
Neko [114]

Answer:8349y

Step-by-step explanation:

6 0
2 years ago
The scale drawing for Lydia’s room is drawn so that 1 cm = 1 ft. If the scale drawing shows the area of her room to be 51 square
butalik [34]
Should be 51 ft. sonve 1 cm = 1 ft
3 0
3 years ago
From a point p on level ground, the angle of elevation of the top of a tree is 60°. If the tree is 39m high, how far is its base
zzz [600]
Hello,

tan 60°=√3
d/39=tan 60°==>d=39/√3=39√3/3=13√3=22,516660498... (m)

5 0
3 years ago
In a sample of 400 voters, 360 indicated they favor the incumbent governor. The 95% confidence interval of voters not favoring t
sveticcg [70]

The 95% confidence interval of voters not favoring the incumbent is (0.0706, 0.1294).

Sample size, n=400

Sample proportion, p = 40 / 400

= 0.1

We use normal approximation, for this, we check that both np and n(1-p) >5.

Since n*p = 40 > 5 and n*(1-p) = 360 > 5, we can take binomial random variable as normally distributed, with mean = p = 0.1 and standard deviation  = root( p * (1-p) /n )

= 0.015

For constructing Confidence interval,

Margin of Error (ME) =  z x SD = 0.0294

95% confidence interval is given by Sample Mean +/- (Margin of Error)

0.1 +/- 0.0294 = (0.0706 , 0.1294)

Learn more about Margin of Error here brainly.com/question/15691460

#SPJ4

5 0
1 year ago
Other questions:
  • the volume of a triangular prism is 42 cubic centimeters. what is the volume of a similar prism that is twice as large as large
    12·1 answer
  • Does Meteo’s data show a positive association or a negative associate? Explain how you know
    5·1 answer
  • A circle has a radius of 6. An arc in this circle has a central angle of 48 degress. What is the length of the arc?
    15·2 answers
  • Which property does each equation demonstrate? x2 + 2x = 2x + x2 (3z4 + 2z3) – (2z4 + z3) = z4 + z3 (2x2 + 7x) + (2y2 + 6y) = (2
    5·1 answer
  • Use counting to determine the whole number that corresponds to the cardinality of these sets:______. (a) A= (xl x € Nand 20.<
    14·1 answer
  • PLEASE HELP MEH!
    7·1 answer
  • In a box of chocolates the ratio of plain chocolates to milk chocolates is 2:5 what fraction of the chocolates are plain what fr
    11·1 answer
  • I need help quick I do K12 and this doesn’t make sense to me AT ALL
    11·2 answers
  • A sweater which originally cost $ 38.40 is on sale 25% off. Carmen has gift card worth $15 off, but the gift card can only be us
    14·1 answer
  • Blank - 5.27 = 2.99<br> literally forgot how decimals work
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!