Paula's dog : Carolos' dog = 3 : 1
The total number of ratio units is 3+1 = 4, so each one stands for (48 lb)/4 = 12 lb.
Paula's dog weighs 3·12 lb = 36 lb.
Carlos' dog weighs 1·12 lb = 12 lb.
The question is not complete. It should read;
<span>Lisa and Bart spin this spinner 60 times the result are below/ black=17 blue=15 orange=21 purple=7 a. What is the experimental probability of a spin of orange? B which color had an experimental probability that matched its theoretical probability
<u>Answers</u>
a) 0.35
b)Blue
<u>Explanation</u>
The probability of an event is its chance to occur.
Probability is found by the formula,
Probability = (Number of favourable outcome)/(Number of total outcome)
Part a
</span>The orange are 21 and the total spins are 60.
Probability (orange) = 21/60
= 0.35
Part 2
The theoretical probability of blue is normally 25%.
By calculating the experimental probability of blue we get,
P(blue) = 15/60
= 1/4
In percentage
1/4×100 = 25%
So, the <span>color that had an experimental probability that matched its theoretical probability is blue.</span>
40% of 400 would be 160.
40% is 0.4
so
0.4*400 = 160
to prove my work
400/160 = 0.4 = 40%
<h3>
Answer: Approximately 2.33</h3>
The variance is given to be 5.43
Apply the square root to the variance to get the standard deviation
s = standard deviation
v = variance
s = sqrt(v)
s = sqrt(5.43)
s = 2.330326 which is approximate
s = 2.33
I rounded to 2 decimal places as this is the number of decimal places used for the variance.
Answer:
Hope it helps i typed and attached it pic through word :)
Step-by-step explanation:
in the pic !!!
