Aunt Sally lives in the UK and frequently audio calls her relatives in Pakistan. Let’s suppose that 55% of her audio calls were preceded by a voice note, and over the span of the past year, she has made around 10 calls home. What is the probability that: a) At most 6 of the voice calls made were preceded by a voice note? (2) b) Exactly 6 voice calls were preceded by a voice note? (2) c) At least 6 of her voice calls were preceded by voice notes? (2)
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Aunt Sally lives in the UK and frequently audio calls her relatives in Pakistan. Let’s
suppose that 55% of her audio calls were preceded by a voice note, and over the span
of the past year, she has made around 10 calls home. What is the probability that:
a) At most 6 of the voice calls made were preceded by a voice note? (2)
b) Exactly 6 voice calls were preceded by a voice note? (2)
c) At least 6 of her voice calls were preceded by voice notes? (2)
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