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Arturiano [62]
3 years ago
9

Jamie is conducting inventory at a public library, so they have to verify that each item from the catalog is in its correct loca

tion. At any given time, 97%, percent of the items are checked into the library (not checked out). Let B be the number of items that Jamie verifies to reach the first item that is checked out. Assume that each item's checked out status is independent.
Find the mean and standard deviation of B.
Mathematics
1 answer:
Andrei [34K]3 years ago
4 0

Answer:

Mean: 33.3

SD: 32.8

Step-by-step explanation:

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a bag contains 5 blue, 8 red, and 7 green marbles. a marble is selected at random. Write each answer as a fraction, percent, and
jonny [76]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Hey can you please help me posted picture of question
shepuryov [24]
The correct answer is option C.

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(8 - 3i)(6 + 5i)

= 8(6 +5i) - 3i(6 + 5i)

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= 22i + 48 - 15(-1)

= 22i + 48 + 15

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6 0
3 years ago
4. ADEF is an equilateral triangle.<br> E<br> 24<br> 20<br> D<br> F
irinina [24]

By Pythagorean theorem

x²+GF²=EF² ( where G is the point of intersection of perpendicular lines)

now, GF=1/2 EF= 12

x²+12²=24²

x²=24²-12²

x²=432

x=√432

x=12√3

x≈20.78

7 0
3 years ago
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