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1 year ago

Q1 Write the number in expanded form for the significant digits ( as fractions)

Mathematics

1 answer:

Dimas [21]1 year ago

6 0

To write in expanded form is to simply mean writing each number into its place value.

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The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 4.5 per week. Find the probabili

Mariana [72]

Answer:

a) 0.01111

b) 0.4679

c) 0.33747

Step-by-step explanation:

We are given the following in the question:

The number of accidents per week can be treated as a Poisson distribution.

Mean number of accidents per week = 4.5

$\lambda= 4.5$

Formula:

$P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}$

a) No accidents occur in one week.

$P(x =0)\\\\= \displaystyle\frac{4.5^0 e^{-4.5}}{0!}= 0.01111$

b) 5 or more accidents occur in a week.

$P( x \geq 5) = 1-\displaystyle \sum P(x$

c) One accident occurs today.

The mean number of accidents per day is given by

$\lambda = \dfrac{4.5}{7} = 0.64$

$P(x =1)\\\\= \displaystyle\frac{0.64^1 e^{-0.64}}{1!}= 0.33747$

5 0

2 years ago

Of the 240 available seats for a concert, 63 seats were reserved. What fraction of seats was reserved? Write your answer in simp

Olin [163]

63/240 seats or 21/80
The greatest common denominator is 3, so you would divide both by 3.

6 0

2 years ago

I'm completely lost?

aliya0001 [1]

13000-5600=7400...that's about it, just multiply then subtract

4 0

2 years ago

Read 2 more answers

Which problem has the same answer as 48 6 ?

pshichka [43]

24/3 is most likely the solution

5 0

3 years ago

Can you please solve and explain how

PtichkaEL [24]

If we take 24 h, and think that 150 bolts are produced during 1 hour,

then during 24 hours we will get 150*24 = 3600 bolts.

So, y = 150x represent the number of bolts the machine can produce in x hours.

150 bolts/h, and y =150bolts/h *24 h = 3600 bolts

Answer is B.

7 0

3 years ago