17/30 of her fish are either testras or guppies :)
(1/6) + (2/5)
(5/30) + (12/30) = 17/30
Answer:
Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .
Step-by-step explanation:
The sample proportion is p2= 7/27= 0.259
and q2= 0.74
The sample size = n= 27
The population proportion = p1= 0.4
q1= 0.6
We formulate the null and alternate hypotheses that the new program is effective
H0: p2> p1 vs Ha: p2 ≤ p1
The test statistic is
z= p2- p1/√ p1q1/n
z= 0.259-0.4/ √0.4*0.6/27
z= -0.141/0.09428
z= -1.496
The significance level ∝ is 0.05
The critical region for one tailed test is z ≤ ± 1.645
Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .
Answer:
Rotation = 1.
Reflection = 5 or 4.
Step-by-step explanation:
A regular octagon is the octagon that has eight, 8 sides and all these eight sides are equal.
So, if we are going to consider rotation and reflection distinct in order to color one diagonal red and another diagonal blue so that the two colored diagonals cross (in the interior) we can do that by following the steps Below;
=> Make sure that the first diagonal with the red color is drawn first.
=> to another make fixing to another end.
=> Determine the possibilities.
The numbers of times can be gotten by using Burnside Lemma which gives Rotation = 1 And Reflection = 5 or 4.
- The set notion will be written as {x∈ℝ | -0.25≤x≤0.5}
- The interval notion will be -0.25≤x≤0.50
Interval notation is way of showing that some values fall in between sets of numbers.
Given the set {-0.25,0,0.25,0.50}, the set notion will be written as;
{x∈ℝ | -0.25≤x≤0.5}
ℝ means that the values in the given set are real numbers. Also, note that the sets are inside curly brackets compared to the interval notion.
The interval notion will be -0.25≤x≤0.5. Interval notions are not always in curly brackets.
Learn more here: brainly.com/question/19248755