Answer:
36
Step-by-step explanation:
Data provided in the question:
Standard error = 1.5 minutes ( ∵ number are repetitive 1.51.5 )
Standard deviation = 9 minutes ( ∵ number are repetitive 99 )
Now,
Standard error = ( Standard deviation ) ÷ √n
Here,
n is the sample size
Therefore,
on substituting the respective values, we get
1.5 = 9 ÷ √n
or
√n = 9 ÷ 1.5
or
√n = 6
or
n = 6² = 36
hope this helps :)
Answers:
1a: I can predict that Flower Garden and Butterlfies and Ladybugs are the two more likely to be chosen, over April Showers.
1b: These percentages I got can prove my theory of that the probability of choosing April Flowers is much lower than the two other options.
Flower Garden: 35/78 ≈ 45%
April Showers: 16/78 ≈ 21%
Butterflies and Ladybugs: 27/78 ≈ 34%
2a: What you should NOT do is conclude which two will be picked.
2b: Although you can predict, based on percentages or other things. You cannot make such a conclusion with the choice being random.
Answer:
A
Step-by-step explanation:
The oil painting classes lastes two hours on Saturday
So what you need to do is put 340 over 45 min in a fraction form then you need to turn the 45min into 1 min and divide 340 by 45 and then you would get the answer
