Question

Red is spun on a spinner with five equal-size sections labeled red, yellow, blue, green, and purple. What is the probability of the complement of the event? Express your answer as a decimal.

Answer 1

Answer:

0.2

Step-by-step explanation:

No. of sections coloured in red=1

No. of total sections=5

So,

1/5=0.2

:-]

Answer 2

Answer:

Probability of the complement of the event is $0.8$.

Step-by-step explanation:

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are. The analysis of events governed by probability is called statistics.

Probability can range in from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event.

The probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of favourable outcomes and the total number of outcomes.

The rule of complementary events comes from the fact of the probability of something happening, plus the probability of it not happening, equals 100% (in decimal form, that's 1).

Probability of an event + Probability of its complementary event = 1. It can be written as.

Probability of its complementary event = 1 - Probability of an event.

Given: A spinner with five equal-size sections labeled red, yellow, blue, green, and purple.

Find: Probability of the complement of the event

Number of favourable outcomes of red $=1$

Total number of outcomes $=5$

Probability of occurring red on spinner

$P(E)=\frac{1}{5} =0.2$

Probability of the complement of the event$=1-0.2$

$=0.8$

#SPJ2