Answer:
a) 47.7%
b) 87.2%
Step-by-step explanation:
Find the ratio of interest, and convert it to a percentage.
<h3>a) </h3>
(messy right-handed writers)/(right-handed writers)
= 31/65 = 31/65 × 100% ≈ 47.7%
__
<h3>b) </h3>
(neat right-handed writers)/(neat writers)
= 34/39 = 34/39 × 100% ≈ 87.2%
Answer:
Step-by-step explanation:
given that the following data represent the discrete probability distribution for the number of stars that reviewers have a first edition statistics reference book.
Stars 5 4 3 2 1
Probability 25% 35% 20% 10% 10%
H0: Second edition is as per the above probabilities
Ha: atleast one is different from the above probability
(two tailed chi square test)
Alpha = 0.025
Assuming H0 to be true we calculate expected frequencies for total 80
chi square calculatons are shown below
df = 4
5 4 3 2 1 Total
Observed 28 28 13 6 5 80
Expected 20 28 16 8 8 80
chi square
(O_E)^2/E 3.2 0 0.5625 0.5 1.125 5.3875
p value =0.1455
Since p value >0.025, we accept H0
The expected requency of three-star reviews is ________.16
We know that
<span>Object A is 1.3 cm long-------------> 1.3*10-------> 13 mm long
</span><span>Object B is 130 mm long
then
</span>Object B is 10 times longer than Object A
Statement
<span>1) The lengths are equal.--------> is false
Object B > Object A
2) Object B is 10 times longer than object A. -------> is true
</span>Object B=10*Object A
<span>
3)Both measurements are less than 1 meter.-------> is true
1 m---------> 1000 mm
</span>Object B (130 mm) < 1000 mm
Object A (13 mm) < 1000 mm
<span>
4)You can convert millimeters to centimeters by dividing by 100------> is false
</span>You can convert millimeters to centimeters by dividing by 10
therefore
the statement that are true
1) <span>Object B is 10 times longer than object A
2) </span>Both measurements are less than 1 meter
Answer:
i think 4 but you try my answer is not or correct
Answer:
21x
Step-by-step explanation:
In the parentheses, 3 * x is the same thing as 3x. Distribute 7 into 3x to get 21x as your final answer.