brianaclarkee brianaclarkee

25-03-2020
Mathematics

contestada

(b)
If three fair coins were tossed 32 times, how many times would you
expect to obtain:
( 3 heads.
(ii) 2 heads,
(iii) I head,
(iv) O heads?

Respuesta :

kenlingdad kenlingdad

25-03-2020

Answer:

4960, 496, 32, 0

Step-by-step explanation:

1) 3 heads: C(₃₂,₃) = (32 x 31 x 30) / (3 x 2 x 1) = 4960

2) 3 heads: C(₃₂,₂) = (32 x 31) / (2 x 1) = 496

3) 1 head: C(₃₂,₁) = (32) / (1) = 32

4) 0 head: 1

Answer Link

Otras preguntas

Students arrive randomly at the help desk of the computer lab. There is only one service agent, and the time required for inquiry varies from student to student

THIS IS 100 POINTS SO GIVE ME THE RIGHT ANSWER In the early 21st century, the Taliban government of Afghanistan supported terrorist groups. What was a conseque

Suppose a 2662 kg giant seal is placed on a scale and produces a 20.0 cm compres- sion. If the seal and spring system are set into simple harmonic motion, what

An object has a mass of 180 g and a volume of 9 cm³. Find the density of the object in g/cm³. g/cm³

The formula for the area of a trapezoid is A = /h(b₁ + b₂). Which equations are equivalent to the formula? 2A Oh b₁+ b₂ 2A 0b₁ = ²4-b₂ 2A 0_b₂ = 24-h b₁ =

Nick bought a new car. each year the car depreciates in value by 12%. work out the number of years it takes for the car to half in value. ?

Why do you think the North and South had the same-size army the first year of the war?

What happens when you restrict someone on messenger?.

A piece of metal weighing 500g is put into a boiling (100 degrees C) water bath. After 10 minutes, the metal is immediately placed in 250g of water at 40°C. The

Simplify the following expression: 4 + √-4 + √-9 + 7 A. 11 + 5i B. 5 - 11i C. 11 + √13i D. 15 + 0i