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3 years ago

How to study for an exam to get full marks

2 answers:

7 0

If it was physics or math try to solve all problems you have and try to search for more questions to solve the more you solve the more you will gain marks ,if it was a subject that needs to memorize write down the things you forget on nots and read them in the morning .. do not forget to take a break whenever you lose your passion just believe in yourself you can do it

Aleksandr [31]3 years ago

3 0

Answer:

This is my way to get better mark in exam, not (full) cus I always got like B :D

- Study hard in the last 2 weeks before exam!!!

- Spend at least 2 hours a day to learn

- Learn more outside school stuff, like some website to learn for free

- Organize times playing, watching and learning better

- Don't play games or distracted in class

- Do whatever u want when you have finished your hw, assignments but do not do that if you haven't finish school stuff

- Don't sleep too late - around midnight is fine :D

Hope this heleped :3

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Last year, 50% of MNM. Inc. employees were female. It is believed that there has been a reduction in the percentage of females i

Serhud [2]

Answer:

We conclude that there has been a significant reduction in the proportion of females.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 400

p = 50% = 0.5

Alpha, α = 0.05

Number of women, x = 118

First, we design the null and the alternate hypothesis

$H_{0}: p = 0.50\\H_A: p < 0.50$

This is a one-tailed test.

Formula:

$\hat{p} = \dfrac{x}{n} = \dfrac{118}{400} = 0.45$

$z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Putting the values, we get,

$z = \displaystyle\frac{0.45-0.50}{\sqrt{\frac{0.50(1-0.50)}{400}}} = -2$

Now, we calculate the critical value.

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.645$

Since the calculated z-statistic is less than the critical value, we fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.

Thus, there has been a significant reduction in the proportion of females.

3 0

3 years ago

A bucket contains 4 red marbles, 10 blue marbles, 7 yellow marbles, and 5 green marbles.

Oliga [24]

Answer:

d. 15.3%

Step-by-step explanation:

There are a total of 4 + 10 + 7 + 5 = 26 marbles

P(pick a red) = 4/26 = 2/13 = .153 = 15.3%

7 0

2 years ago