Seven hundred tickets will be sold and these will be raffled during the fiesta of Brgy. Masiete. One of these tickets will win ₱10,000 and the rest will win nothing. What will be the expected value and variance of your gain if you will buy one of the tickets?
A classroom teacher hypothesizes that using lecture method in teaching specific lesson is the same as teaching it using demonstration method in terms of students learning. This means that students who were taught using the lecture method would perform similary(say on test)than those were taught using demonstration method. Formulate the null and alternative hypothesis in sentence and in symbol.
(x^3+y^3)=(3xy^2)dy/dx
Complete the table below.
Type of Test n df Confidence level a t-value
1. one-tailed 12 95%
2. one-tailed 15 95%
3. two-tailed 21 99%
4. two-tailed 23 95%
5. one-tailed 25 90%
6. two-tailed 16 90%
7. one-tailed 9 95%
8. two-tailed 27 99%
9. one-tailed 18 90%
10. two-tailed 20 99%
Use the Laplace transform to solve the given initial-value problem.
y′ + 2y = sin 4t, y(0) = 1
Find power series method to find the solution of the given differential equation about the
ordinary point x = 0.
y′′ + e^xy′ − y = 0
Suppose that the average number of cars abandoned weekly on a certain highway is2.2.
Approximate the probability that there will be:
(a) no abandoned cars in the next week;
(b) at least 2 abandoned cars in the next week. . . " .....
(c) State the key assumptions needed to' make your answers in a) and b) reasonable
Fundamental Principle of counting
You want to put your wattpad in bookshelf. In how many ways can the 7 wattpad be arrange in the shelf?
Draw tue hasse diagram for the partial ordering relation {(A, B) /(A⊆B) } on the poset where S={a, b, c}
manager of a courier service believes that packets delivered at the end of the month are heavier than those delivered early in the month. As an experiment, he weighed a random sample of 20 packets at the beginning of the month. He found that the mean weight was 5.25 kgs with a standard deviation of 1.20 kgs. Ten packets randomly selected at the end of the month had a mean weight of 4.96 kgs and a standard deviation of 1.15 kgs. At the 0.05 significance level, can it be concluded that the packets delivered at the end of the month weigh more?