tehyaandroze
tehyaandroze tehyaandroze
  • 03-12-2019
  • Mathematics
contestada

A spinner has 12 equal sections:5 red 4 green and the rest are black. In 921 spins how many times can you expect to spin black?

Respuesta :

jimthompson5910 jimthompson5910
  • 03-12-2019

Answer:

230

Step-by-step explanation:

12 sections total

5 red, 4 green, the rest black

12-5-4 = 3 sections are black

3/12 = 1/4 of the sections are black

1/4 represents the probability of landing on black for one spin

(1/4)*921 = 230.25 which rounds to 230

We expect to land on a black section about 230 times out of 921 times total.

Answer Link

Otras preguntas

What is an appropriate reason that scientists might reject atomic theory
1. find the value of c in the equation a^b(3a^b)c= 243a^6b a. 2 b. 4 c. 5 d. 8 2. Select the expression that is equivalent to 6a^-4(3b^8) over 3a^3b^2 a. 3b^5/a
find the slope and y-intercept of 4x+3y-1=5x-2y+3
how a whale carcass will help the deep ocean creatures
The bible was used by many preachers in the late 1800s for 1. Condemning immigrants 2. Getting money from the wealthy 3. Social reform 4.none of the above
How many factors of 1296 are c perfect squares?
The narrator introduces John Dashwood as a "steady respectable young man" who "conducted himself with propriety in the discharge of his ordinary duties." But he
what did the first national government accomplish under the articles of confederation
Find the derivative of the trigonometric function
How much of an alloy that is 20 % copper should be mixed with 400 ounces of an alloy that is 70 % copper in order to get an alloy that is 40 % ​copper?