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Mazyrski [523]
3 years ago
7

HELP ME CHEAT

Mathematics
1 answer:
ira [324]3 years ago
6 0
The answer would be 0.3
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Pomocy!!mam jeszcze kilka pytan. ​
Karo-lina-s [1.5K]

Answer:

6758

Step-by-step explanation:

Number of steps in Monday = 8565 steps

Number of steps in Tuesday = 14707 steps

Number of steps in Wednesday = 15323 steps

Number of steps in Thursday = 9788 steps

Number of steps in Friday = 12482 steps

Formula for range = Highest value – Lowest value

Here, highest value = 15323 and lowest value = 8565

Range of the number of steps = 15323 – 8565 = 6758

Hence, range of the number of steps is 6758 steps.

4 0
3 years ago
Please answer 14 and 13
Colt1911 [192]
7/4 * 301/2 (changed into mixed numbers)
2107/8
263.375
C
because when you change 3 into a mixed fraction its 263*8+3/8
263.375
#1
7 0
3 years ago
Read 2 more answers
An article in Knee Surgery, Sports Traumatology, Arthroscopy, "Arthroscopic meniscal repair with an absorbable screw: results an
igomit [66]

Answer:

Mean = 1.57

Variance=0.31

Step-by-step explanation:

To calculate the mean and the variance of the number of successful surgeries (X), we first have to enumerate the possible outcomes:

1) Both surgeries are successful (X=2).

P(e_1)=0.90*0.67=0.603

2) Left knee unsuccessful and right knee successful (X=1).

P(e_2)=(1-0.9)*0.67=0.1*0.67=0.067

3) Right knee unsuccessful and left knee successful (X=1).

P(e_3)=0.90*(1-0.67)=0.9*0.33=0.297

4) Both surgeries are unsuccessful (X=0).

P(e_4)=(1-0.90)*(1-0.67)=0.1*0.33=0.033

Then, the mean can be calculated as the expected value:

M=\sum p_iX_i=0.603*2+0.067*1+0.297*1+0.033*0\\\\M=1.206+0.067+0.297+0\\\\M=1.57

The variance can be calculated as:

V=\sum p_i(X_i-\bar{X})^2\\\\V=0.603(2-1.57)^2+(0.067+0.297)*(1-1.57)^2+0.033*(0-1.57)^2\\\\V=0.603*0.1849+0.364*0.3249+0.033*2.4649\\\\V=0.1115+0.1183+0.0813\\\\V=0.3111

3 0
4 years ago
Una gruesa de lapices(144 unidades) cuesta $6.800. Cuanto cuestan 450 lapices
irina [24]
Write and solve an equation of ratios:

$6,800                x
------------- = --------------
144 units       450 units

Then 144x = 3060000, or x = $21,250 (answer)
3 0
3 years ago
What plus what equals 234
Lisa [10]
123
+111 = 234 easy peasy you're welcome)
4 0
4 years ago
Read 2 more answers
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