Question

Which of the following symbols represent the variability or spread of a population of measurements:

a. s (small letter 's')
b. σ (sigma)
c. rho (rho)
d. Ω (omega)

QUESTION 2 The probability that the resistance of a resistor is less than or equal to 16.0ohm is 0.34 and the probability that it is greater than or equal to 18.5 ohm is 0.12 . What is the probability that the resistance of the resistor is less than or equal to 16.0ohm or greater than 18.5ohm ?

QUESTION 3 The probability that the mass of a washer is less than or equal to 1.80 g is 0.04 and the probability that the mass is less than or equal to 1.92 g is 0.59 . What is the probability that the mass of the washer is between 1.80 g and 1.92 g (greater than 1.80 g and less than or equal to 1.92 g )?

Answer 1

The symbol that represents the variability or spread of a population of measurements is σ (sigma). The lowercase letter s is used for sample standard deviation.

Step-by-step explanation:

The symbol that represents the variability or spread of a population of measurements is σ (sigma).

This symbol is used to denote the population standard deviation.

The lowercase letter s is used to represent the sample standard deviation.