Sunday
May 19, 2013

# Posts by bella

Total # Posts: 513

Statistic
Suppose that 15 students take a quiz and everyone in the class scores an 80. The standard deviation of scores for this quiz is ____________?

Statistic
A urn contains 21 red balls, 14 white balls If we randomly select 2 balls, one after the other without replacement, what is the probability that both of the balls selected are red?

Maths A
Sue was sailing in the area shown on the chart on 3 March 2013. At 9:00 a.m., she sighted the antenna mast on Wellings Island on a bearing of 180°T. Sue also took a sighting to the lighthouse on Abby Island and found it was at an angle of 098°M. (i) Sue sighted the ant...

Maths
normal

Maths
A tyre manufacturer has chosen 48 tyres at random from a production line and issued them to taxis for testing. Assume that the 48 numbers you have selected refer to the number of thousands of kilometres travelled during the life of each tyre. (For example, a value of ‘32&...

Physical Science
How do you calculate the number of grams of ice at 32 degrees celsius that can be melted by 1g of steam?

Physical Science
How do you get the velocity of a roller coaster when you are only given 250.0kg and 2.000x10^4 Joules

Science
Liquid Nitrogen boils at -196 degrees Celsius . What is the temperture on the Kelvin scale ?

Science
Eighty calories must be added to one gram of I've at zero degrees Celsius to melt it. Whst is the approximate mechanical equivalent of this amount of energy?

Art
Using the knowledge of public art gained during this lesson, critique your peers' artwork. Give three examples that will allow them to improve what they have created.

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