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0 
Questions Answered

brittan_leann11:
Group Title
The number of nails of a given length is normally distributed with a mean of 5.00 in. and a standard deviation of 0.03 in. Find the number o…
 updated 42 minutes ago
 7 replies
 No Medals Yet
Mathematics

brittan_leann11:
Group Title
A set of data has a normal distribution with a mean of 50 and a standard deviation of 8. What percent of the data should be less then 50?
A…
 updated an hour ago
 2 replies
 No Medals Yet
Mathematics

arilove1d:
Group Title
To test the accuracy of an industrial scale to
0.02 lb, an object which is known to be 107 lb
is placed on the scale.
 updated 11 minutes ago
 4 replies
 No Medals Yet
Mathematics

kittyxxcat:
Group Title
A person travels by car from one city to another. She drives for 35.6 min at 64.5 km/h,14.4 min at 92.3 km/h, 49.5 min at 32.4km/h,and spend…
 updated an hour ago
 1 reply
 No Medals Yet
Mathematics

saheem:
Group Title
At a raffle, 1500 tickets are sold at $2 each for four prizes of $500, $250, $150, and $75.
You buy one ticket. What is the expected value…
 updated 7 hours ago
 1 reply
 No Medals Yet
Mathematics

katebored:
Group Title
you spin the pointer on this spinner find the probability that the pointer will stop on a number great the 6? 18 spinner
 updated 19 hours ago
 3 replies
 No Medals Yet
Mathematics

emetuo89:
Group Title
1. A recent poll asked registered voters about their thoughts on the legalization of marijuana and stem cell research. The results are shown…
 updated 19 hours ago
 2 replies
 No Medals Yet
Mathematics

juju1234:
Group Title
You have a list of 1,000 random, normally distributed numbers with a mean of 20 and a standard deviation of 3. Which statement is true?
a…
 updated 20 hours ago
 2 replies
 1 Medal
Mathematics

ciebrown:
Group Title
does anyone know how to solve this: 3^x+3=1/9 step by step and not just the answer
 updated 7 hours ago
 8 replies
 1 Medal
Mathematics

JoannaBlackwelder:
Group Title
Six people go to the movies. John and Jack are two of these six people. When the people get there, they find that these are only 4 seats ava…
 updated yesterday
 4 replies
 1 Medal
Mathematics

saheem:
Group Title
From the ten books that you’ve recently bought but not read, you plan to take four with you on vacation. How many different sets of four boo…
 updated yesterday
 6 replies
 No Medals Yet
Mathematics

jadaaaa:
Group Title
How does solar power work?
 updated yesterday
 1 reply
 1 Medal
Mathematics

RANE:
Group Title
A box of breakfast cereal has "contains 500g of breakfast cereal" printed on it. Suppose that in fact the weight of breakfast cereal contain…
 updated yesterday
 30 replies
 1 Medal
Mathematics

student1001:
Group Title
does the period depend on the amplitude of oscillations?
 updated yesterday
 3 replies
 2 Medals
Mathematics

jk4353ad:
Group Title
You are performing a cohort study to look at risk factors for breast cancer in postmenopausal women. If the probability of developing breas…
 updated 2 days ago
 1 reply
 2 Medals
Mathematics

iacamp:
Group Title
Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase your speed by 5…
 updated 2 days ago
 1 reply
 No Medals Yet
Mathematics

brittan_leann11:
Group Title
The number of nails of a given length is normally distributed with a mean of 5.00 in. and a standard deviation of 0.03 in. Find the number o…
 updated 2 days ago
 2 replies
 No Medals Yet
Mathematics

HenrietePurina:
Group Title
You suspect that the spiciness of food served in a restaurant is positively correlated with number of soft drinks ordered. You have gathered…
 updated 3 days ago
 14 replies
 1 Medal
Mathematics

meg_72:
Group Title
2^(x4)+10=22
 updated 3 days ago
 11 replies
 1 Medal
Mathematics

lmarooney:
Group Title
x/9=2(9)
 updated 3 days ago
 1 reply
 No Medals Yet
Mathematics

HatcrewS:
Group Title
Fan and Medal!
Market research has shown that 60% of the customers at an electronics store opt to pay for their purchases by installments…
 updated 5 days ago
 11 replies
 1 Medal
Mathematics

liliegirl:
Group Title
A bus passes by a car which is at rest. When the bus is 200 m ahead of the car, the bus having a velocity of 108 kph at that point, decelera…
 updated 5 days ago
 1 reply
 1 Medal
Mathematics

bnp:
Group Title
[Will give medal+fan]
A radiator contains 5 quarts of fluid, 20% of which is antifreeze. How much fluid should be drained and replaced wi…
 updated 5 days ago
 1 reply
 1 Medal
Mathematics

msawesome111:
Group Title
give a badge to the first answer! XD
A science teacher was curious to see whether offering money for good grades would increase their perfo…
 updated 5 days ago
 3 replies
 1 Medal
Mathematics

thesecret20111:
Group Title
How can I solve/simplify the following equation without a calculator? (I'll write it up)
 updated 6 days ago
 7 replies
 1 Medal
Mathematics

Mathbinder:
Group Title
how to find out the area of a 4 1/3 base and 3 2/5 height parallelogram
 updated 6 days ago
 7 replies
 2 Medals
Mathematics

KaarenMirza:
Group Title
How many ways can 12 questions on a truefalse test be answered if a student answers every question?
 updated 7 days ago
 4 replies
 1 Medal
Mathematics

Bob6666:
Group Title
If there is a 30% chance of sun tomorrow and a 40% chance of wind and no sun, what is the probability that it is windy, given that it is not…
 updated 7 days ago
 1 reply
 No Medals Yet
Mathematics

K1986:
Group Title
If 2 cards are drawn without replacement from an ordinary 52 card deck, find the probability that the first card drawn is a king and that th…
 updated 6 days ago
 3 replies
 1 Medal
Mathematics

candyswirl:
Group Title
A recipe that makes 6 servings calls for 1/2 cups of orange juice and 5/6 cup of lemonade. Nancy modifies the recipe so that it can serv…
 updated 7 days ago
 1 reply
 No Medals Yet
Mathematics
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