Where the variance is 0.32, the mean is 0.40, and there are provided sets of probabilities, the standard deviation will be 0.566.
<h3>What is standard deviation?</h3>
The average degree of variability in your dataset is represented by the standard deviation. It reveals the average deviation of each statistic from the mean. In general, values with a high standard deviation are spread out from the mean, whereas those with a low standard deviation are grouped together close to the mean.
Here,
mean=0.4
variance=(Xn-mean)².P(x)n
=(0-0.4)²*(0.64)+(1-0.4)²*(0.32)+(2-0.4)²*0.04
variance=0.32
Standard deviation=√(variance)
=√0.32
=0.566
The standard deviation will be 0.566 where variance in 0.32 and mean is 0.40 and given sets of probability.
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B.) (15 + 2)x because they both are getting multiplied by the value of x making it 17x.
Answer:
Ernie's time is 11.1 seconds
Explanation:
If Bert won the race with the time of 12.6 and the time difference is 1.5, this means Ernie's time was 1.5 seconds less than 12.6.
12.6
−
1.5
=
11.1
Answer:
x = number of students in the class
"there are fewer than 70 people in the class"
x < 70
x must be divisible by 4,5 and 6.
x must be a multiple of 5
x can't end with a 5, because it won't be divisible by 4 or 6. This means x must end with a 0.
List the multiples of 6 and 4 till you find their highest common factor.
x = 60
Answer:
1
Step-by-step explanation:
3 cans for 3 cats 1 can for 1 cat