If a fair coin is tossed four times, what is the probability of obtaining at least one head?
\(\frac{1}{2}\)
\(\frac{1}{4}\)
\(\frac{13}{16}\)
\(\frac{15}{16}\)
Correct answer is D
P(at least one head) = 1 - P(4 tails)
Let \(p = \frac{1}{2}\) = probability of head and \(q = \frac{1}{2}\) = probability of tail.
\((p + q)^{4} = p^{4} + 4p^{3}q + 6p^{2}q^{2} + 4pq^{3} + q^{4}\)
P(4 tails) = \(q^{4} = (\frac{1}{2})^{4} = \frac{1}{16}\)
P(at least one head) = \(1 - \frac{1}{16} = \frac{15}{16}\)
4 : 1
3 : 1
2 : 1
1 : 1
Correct answer is D
No explanation has been provided for this answer.
₦240,000
₦220,000
₦200,000
₦180,000
Correct answer is B
No explanation has been provided for this answer.
Which of the following bases of accounting does not make allowance for depreciation?
Cash basis
Accrual basis
Matching basis
Commitment basis
Correct answer is C
No explanation has been provided for this answer.
Which of the following formulae is used to calculate stock turnover rate?
\(\frac{sales}{\text{average stock}}\)
\(\frac{\text{cost of sales}}{\text{average stock}}\)
\(\frac{\text{cost of sales}}{\text{opening stock}}\)
\(\frac{\text{cost of production}}{\text{average stock}}\)
Correct answer is B
The inventory turnover ratio formula is the cost of goods sold divided by the average inventory for the same period.