Explanation

Mean of a binomial distribution is given by:

  Mean = n × p

So, Mean = 4 × 0.5 = 2

Explanation

A die has 6 numbers: 1, 2, 3, 4, 5, 6

Even numbers greater than 2: 4 and 6 → 2 outcomes

Total possible outcomes: 6

Probability = 2/6 = 1/3

Explanation

Explanation

The word "MUHAMMAD" consists of 8 letters in total: M, U, H, A, M, M, A, D.
There are 3 occurrences of the letter "M."

Explanation

The method of sampling in which the choice of sample items depends exclusively the judgement of the investigator is termed as Judgement sampling.

In non-probability sampling techniques, all elements do not have the same probability to get selected in the final consideration set which is also known as the sample. 

Explanation

• The Second Quartile (Q2) is a measure of central tendency, also known as the median.
• It is the middle value of a dataset when it is sorted in order.

Explanation

The harmonic mean is the appropriate measure of central tendency to use when calculating the average speed of a journey.

This is because speed is a rate (distance per unit time), and the harmonic mean is used to average rates.

The formula for harmonic mean is: H = n / (∑(1/x))

where H is the harmonic mean, n is the number of values, and x is each value.

Explanation

Deciles divide an ordered data set into 10 equal parts.

Each decile represents 10% of the data distribution.

Explanation

Mutually exclusive events cannot happen at the same time.

So, P(A or B) = P(A) + P(B) when A and B are mutually exclusive.

Explanation

An Ogive is a graph that shows cumulative frequencies, either less than or greater than a certain class limit.

It's used to determine medians, percentiles, and quartiles visually.