A box contains three 40 Watt bulbs, eight 60 Watt bulbs, and
nine 100 Watt bulbs....
A box contains three 40 Watt bulbs, eight 60 Watt bulbs, and
nine 100 Watt bulbs. If you drew a sample of three bulbs without
replacement what is the probability within that sample that there
are more 60 Watt bulbs than 40 Watt bulbs?
A box contains six 25-watt light bulbs, nine 60-watt light
bulbs, and five 100-watt light bulbs. What is the probability a
randomly selected a 60 watt light bulb? (PLease explain how did you
get your answer)(2 pt) Note: You must provide your answer
as a fraction NOT decimal)
Cell Phone Provider
Probability
AT&T
0.271
Sprint
0.236
T–Mobile
0.111
Verizon
0.263
Does the above table represent the probability model? Explain your
answer. (2 pt)
The data shows the distance that employees...
a A box in a certain supply room contains seven 40-watt light
bulbs, five 60-watt bulbs, and six 75-watt bulbs. Suppose that
three bulbs are randomly selected. a. What is the probability that
exactly two of the selected bulbs are rated 75-watt? b. What is the
probability that all three of the selected bulbs have the same
rating? c. What is the probability that one bulb of each type is
selected? d. What is the probability that at least two...
A box contains 100 Christmas light bulbs -- 40 green, 35 red and
25 blue. You randomly select two bulbs from the box with
replacement. The outcome of interest is the colour of each of the
two selected light bulbs. (a) List the complete sample space of
outcomes. (1 mark) (b) What is the probability that the two
selected bulbs are the same colour? (1 mark) (c) What is the
probability that the first selected bulb is green or that...
A box in a certain supply room contains five 40-W lightbulbs,
seven 60-W bulbs, and six 75-W bulbs. Suppose that three bulbs are
randomly selected. (Round your answers to four decimal
places.)
(a) What is the probability that exactly two of the selected bulbs
are rated 75-W?
(b) What is the probability that all three of the selected bulbs
have the same rating?
(c) What is the probability that one bulb of each type is
selected?
(d) Suppose now that...
A box in a certain supply room contains five 40-W lightbulbs,
six 60-W bulbs, and four 75-W bulbs. Suppose that three bulbs are
randomly selected. (Round your answers to four decimal places.)
(a) What is the probability that exactly two of the selected
bulbs are rated 75-W?
(b) What is the probability that all three of the selected bulbs
have the same rating?
(c) What is the probability that one bulb of each type is
selected?
(d) Suppose now that...
A box in a certain supply room contains four 40-W lightbulbs,
five 60-W bulbs, and seven 75-W bulbs. Suppose that three bulbs are
randomly selected. (Round your answers to four decimal places.)
(a) What is the probability that exactly two of the selected
bulbs are rated 75-W?
(b) What is the probability that all three of the selected bulbs
have the same rating?
(c) What is the probability that one bulb of each type is
selected?
(d) Suppose now that...
TKK Products manufactures 50-, 60-, 75-, and 100-watt electric
light bulbs. Laboratory tests show that the lives of these light
bulbs are normally distributed with a mean of 650 hr and standard
deviation of 100 hr. What is the probability that a TKK light bulb
selected at random will burn for the following times? (Round your
answers to four decimal places.)
(a) more than 850 hr
(b) less than 500 hr
(c) between 650 and 850 hr
(d) between 500...
A box contains 100 balls, of which 15% are green, 40% are red,
and 45% are spotted.
Use simulation to find the probability that if you
randomly draw a ball you get a Red Ball.
Use the following 20 randomly generated numbers: 97, 52,
61, 87, 07, 48, 73, 49,
23, 75, 18, 15, 70, 34, 67, 40, 48, 98, 49,
70
Feit Electric manufactures 60-watt equivalent Compact
Fluorescent Bulbs that it guarantees will last at least 10,000
hours. The Consumer Testing Company tested the claim of the
manufacturer by purchasing a random sample of 60-watt equivalent
CFBs manufactured by Feit Electric. The Consumer Testing Company
tested 36 CFBs. The results of the test are found in
Chapter_10_Project_HT_CFB.xlsx. The Consumer Testing Company has no
other data on CFBs from the manufacturer, so must rely for its test
on the sample of 36...
25) You are comparing LED and CFL bulbs. A 100 watt CFL bulb
costs $1.00 and lasts 1,500 hours, while a comparable LED bulb of
15 watts costs $3.00 and lasts 4,000 hours. There are 1,000 watt in
a kilowatt and a unit of electricity (1,000 watts-hour) costs 12
cents. If you use each bulb for 500 hours in a year and require a
return of 15% what are the equivalent annual cost of each bulb?
Please show the calculations....