50 POINTS! Match the symbols used in electric circuit diagrams to their functions.
Circuit Symbols Matching
1.
a device that converts electric energy into sound energy

2.
a device that provides energy to a circuit

3.
a device that glows when it receives current

4.
a device that starts or stops the flow of current

im gussing sorry if its wrong :(

Step-by-step explanation:

1=a

2=d

3=b

4=c

the answer will be b x² +x-1

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560