QR Flashcards

1
Q

box and whiskers

A

box line shows median value of set
each thing is one quarter
interquartile range: middle 50% so top edge- bottom edge

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2
Q

standard deviation %

A

68, then 95, then 99.7

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3
Q

Z scores

A

Z score: above/ below the mean by that many st devs

to test null hypothesis, the alternate hypothesis is NOT the null

test p value:

significance level;

null hypothesis test

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4
Q

total time

A

1/t + 1/t2 = 1/T tot

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5
Q

compound interest

A

FV= PV (1 + Interest rate/ compounds)^ compounds and time

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6
Q

null hypothesis test?

A

if test P > significance level, then yes it FAILS

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7
Q

significance level

A

1- confidence interval

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8
Q

test p value:

A

sum of p values of Z scores above and below

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9
Q

inch to cm

A

2.54 cm

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10
Q

Kelvin using C

A

K= C + 273

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11
Q

F to C

A

F = 9/5 C + 32

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12
Q

1 mile has how many ft?

A

5280 ft

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13
Q

1 yard has how many ft?

A

3 ft

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14
Q

1 M is how many yards?

A

1.1

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15
Q

kg to lb

A

2.2 lb

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16
Q

1 lb to g?

A

454 G

17
Q

1 lb to ounce?

A

16 ounces

18
Q

m per mile?

A

1610m

19
Q

areA of equilateral triangle

A

s^2 (root 3)// 4

20
Q

volume of sphere

A

4/3 pi r ^3

21
Q

volume increase formula

A

new - original // original x 100%