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A boy is asked to estimate the height of his sister. He estimates that she is 1.60 metres tall. He then measures his sister and finds that her true height is 1.40 metres.
Identify the absolute error of his estimate of her height.
Calculate
1/5 of actuarial students like skiing.
2/5of actuarial students like snowboarding.
1/3 of actuarial students like skiing and snowboarding.
Calculate the proportion of actuarial students that like skiing or snowboarding.
A)
B)
C)
D)
One of the two solutions to the equation is .
Determine the second solution.
A)
B)
C)
D)
The variable s can take values between 2 and 6.
Identify which of the inequalities shown can be satisfied by at least one value of s.
Describe the skewness of the following data:
Consider the vector U = (3, -1, 5).
Calculate the magnitude of vector U to two decimal places.
The graph shows the frequency distribution of the age of people with a certain kind of insurance contract.
Describe the shape of the underlying data.
The random variable X has the following probability density function ("PDF"):
Calculate: P(x ≥ 1.5)