You must use the t-distribution table when working problems when the population standard deviation (σ) is not known and the sample size is small (n<30). General Correct Rule: If σ is not known, then using t-distribution is correct. If σ is known, then using the normal distribution is correct.
Answer:
44.24 cm squared
Step-by-step explanation:
3.14*4^2=50.24
3*2=6
50.24-6=44.24
hope this helps
Answer:
14,142.858
Step-by-step explanation:
The median number is C, one pet. The median is asking what number is in the middle of the data set. There are 20 students surveyed so the middle will be 10. The number in the middle is 1 pet
Answer:
200cm squared
Step-by-step explanation:
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