Answer:
-3 < x ≤ 8
Step-by-step explanation:
First, write this statement with symbols:
2x - 5 > -3, but also:
2x - 5 ≤ 11
Adding 5 to both sides of the first inequality yields 2x > 2. pr x > 1.
Adding 5 to both sides of the second inequality results in 2x ≤ 16, or x ≤ 8.
Thus, -3 < x ≤ 8 is the shortest way in which to write the given information.
It can be deduced that the probability of having 4 or more correct guesses will be 0.0296.
<h3>How to calculate the probability</h3>
From the given information, the null hypothesis is p = 1/7 and the alternate hypothesis is p>1/7. In this case, the mind reader gets a 4 out of 9 chances.
In order to test the hypothesis, simulations for 10000 cases were run with a probability of the correct answer being 1/7.
In this case, the p-value is the probability of correct answers that are greater than 4, assuming the null hypothesis is true. Here the p-value is 0.0296.
Also, the significance level to reject the hypothesis is less than 0.01. Since p > 0.01, we then fail to reject the hypothesis. Therefore the null hypothesis stands and Joao is not a mind reader.
Learn more about probability on:
brainly.com/question/24756209
Answer:
a
POPULATION : The population is the surfers , swimmers, snorkelers and spear-fishermen in America
SAMPLE : The 1000 records of shark attacks selected
VARIABLE FOR STUDY: 580 surfers
Step-by-step explanation:
Generally the population is the surfers , swimmers, snorkelers and spear-fishermen in America
This is because it is the entire pool from which a statistical sample is drawn
Generally the sample is the 1000 records of shark attacks selected
This is because this the number drawn from the population for statistical testing also this contain the characteristics of the population
Generally the variable for study is 58% of 1000 = 580 surfers
This is because the this 580 surfer is the major focus of the Researchers study
Answer:
LCD is 6
first choice
Step-by-step explanation:
least common denominator of 2 and 3 is 6