84
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Answer:
Two intervals are 63 and 75
Step-by-step explanation:
Given:
Mean of students (μ) = 69 inches
Standard deviation (σ) = 3 inches μ
Find:
Interval of heights (95%) using empirical rule
Computation:
Interval of heights (95%) using empirical rule:
⇒ μ – 2σ = 69 - 2(3)
⇒ μ – 2σ = 69 - 6
⇒ μ – 2σ = 63
⇒ μ + 2σ = 69 + 2 (3)
⇒ μ + 2σ = 69 + 6
⇒ μ + 2σ = 75
Two intervals are 63 and 75
Answer:
8
Step-by-step explanation:
2222
233
242
44
332
323
422
224
Answer:
The train takes 8 hours and 52 minutes.
Step-by-step explanation:
Both Zurich and Vienna are in the same time zone, so there is no time to adjust the time zone.
Leaves: 22:40
Arrives: 7:32
From 23 to 7:32 there are (7 - 0) + (24 - 23) = 8 hours.
32 + (60 - 40) = 32 + 20 = 52 minutes.
The train takes 8 hours and 52 minutes.
Jenna said not to pull out and then she had a baby and could not build a fence. so this question is irrelevent.
