Answer:
-3°F
Step-by-step explanation:
6 - 9 = -3°F
Answer:
Step-by-step explanation:
slope = (5-77)/(98-2) = -72/96 = -¾
Answer:
I WISH I COULD HELP BUT I CANT SORRY
Step-by-step explanation:
I CANT HELP IM NOT IN YOUR GRADE I'm in middle School
Answer:
.
Step-by-step explanation:
Answer:
97
Step-by-step explanation:
Given that:
Low = 43bpm
High = 115 bpm
Error = 3
α = 90%
To find the range estimate :
Standard destviation = (high - low) / 4
Standard deviation = (115 - 43) / 4
Standard deviation = 72/4 = 18
The sample size,(n) :
n = [(Zα/2 * sd)/E] ²
2 - tail = (Zα/2) = 1.645
[(Zα/2 * sd)/E] ² = [(1.645 * 18) / 3]² = (29.61/3)²
= 97.41
Sample size = 97
