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Instructions: Answer the probability questions based on the given scenario. Use the binomial distribution table. Fifteen percent of cellphone users use their cell phones to access the Internet. In a random sample of 10 cell phone users, what is the probability that: 1. Exactly 2 have used their phones to access the Internet? P(x 2 V )= .2759 2. More than 2 have used their phones to access the Internet? P(x 2 v )= 0.4557 3. At least 8 have used their phones to access the Internet? P(x -=2 + V 8 V )= .9999

Instructions: Answer the probability questions based on the given scenario. Use the binomial distribution table. Fifteen percent of cellphone users use their cell phones to access the Internet. In a random sample of 10 cell phone users, what is the probability that: 1. Exactly 2 have used their phones to access the Internet? P(x 2 V )= .2759 2. More than 2 have used their phones to access the Internet? P(x 2 v )= 0.4557 3. At least 8 have used their phones to access the Internet? P(x -=2 + V 8 V )= .9999

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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Binomial Random Variables Instructions: Answer the probability questions based on the given scenario. Use the binomial distribution table. Fifteen percent of cellphone users use their cell phones to access the Internet. In a random sample of 10 cell phone users, what is the probability that: 1. Exactly 2 have used their phones to access the Internet? P(x 2 )= .2759 %3D 2. More than 2 have used their phones to access the Internet? P(x 2 V )= 0.4557 > 3. At least 8 have used their phones to access the Internet? P(x 8. .9999 4. No more than 5 have used their phones to access the Internet? P(x 5 .9986 5. Between 1 and 3 people, exclusive, have used their phones to access the Internet? P( 1 3 V )= .7531 Check V V LO VI
Transcribed Image Text:Binomial Random Variables Instructions: Answer the probability questions based on the given scenario. Use the binomial distribution table. Fifteen percent of cellphone users use their cell phones to access the Internet. In a random sample of 10 cell phone users, what is the probability that: 1. Exactly 2 have used their phones to access the Internet? P(x 2 )= .2759 %3D 2. More than 2 have used their phones to access the Internet? P(x 2 V )= 0.4557 > 3. At least 8 have used their phones to access the Internet? P(x 8. .9999 4. No more than 5 have used their phones to access the Internet? P(x 5 .9986 5. Between 1 and 3 people, exclusive, have used their phones to access the Internet? P( 1 3 V )= .7531 Check V V LO VI
0.01 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 .980 .902 .810 .723 .640 .563 .490 .423 .360 .303 .250 .203 .160 .123 .090 .063 .040 .023 .010 .002 1 .020 .095 .180 .255 .320 |.375 .420 .455 .480 .495 .500 .495 .480 .455 .420 .375 .320 .255 .180 .095 .010 .023 .063 .203 .166 2 .000 .002 .040 .090 .123 .160 .250 .303 360 .423 .490 .563 .640 .723 .810 .902 .970 .857 .729 .614 .512 .422 .343 .275 .216 .125 .091 .064 .043 .027 .016 .008 .003 .001 .000 1 .029 .135 .243 .325 .384 .422 .441 .444 .432 .408 .375 .334 .288 .239 .189 .141 .096 .057 .027 .007 .000 .007 .027 .057 .096 .141 .189 .239 .288 .334 .375 .408 .432 .444 .441 .422 .384 .325 .243 .135 3 .000 .000 .001 .003 .008 .016 .027 .043 .064 .091 .125 .166 .216 .275 .343 .422 .512 .614 .729 .857 4 .961 .815 .656 .522 .410 .316 .240 .179 .130 .092 .062 .041 .026 .015 .008 .004 .002 .001 .000 .000 1 .039 .171 .292 .368 .410 .422 .412 .384 .346 .300 .250 .200 .154 .112 .076 .047 .026 .011 .004 .000 .211 | .256 .026 |.047|.076 .001 .014 .049 .098 .154 .311 .346 .368 .375 .368 .346 .311 .265 .211 .154 .098 .049 .014 3 .000 .000 .004 .011 .112 .154 .200 .250 .300 .346 .384 .412 .422 .410 .368 .292 .171 4 .000 .000 .000 .001 .002 .004 .008 .015 .026 .041 .062 .092 .130 .179 .240 .316 .410 .522 .656 .815 .951 .774 .590 .444 .328 .237 .168 .116 .078 .050 .031 .019 .010 .005 .002 .001 .000 .000 .000 .000 1 .048 .204 .328 .392 .410 .396 .360 .312 .259 .206 .156 .113 .077 .049 .028 .015 .006 .002 .000 .000 .205 .051 .006 |.015 .000 |.001 .001 .021 .073 .138 .264 .309 .336 .346 .337 .312 .276 .230 .181 .132 .088 .051 .024 .008 .001 3 .000 .001 .008 .024 .088 .132 .181 .230 .276 .312 .337 .346 .336 .309 .264 .205 .138 .073 .021 .360 .168 4 .000 .000 .000 .002 .028 .049 .077 .113 .156 .206 .259 .312 .396 .410 .392 .328 .204 5 .000 .000 .000 .000 .002 .005 .010 .019 .031 .050 .078 .116 .237 .328 .444 .590 .774
Transcribed Image Text:0.01 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 .980 .902 .810 .723 .640 .563 .490 .423 .360 .303 .250 .203 .160 .123 .090 .063 .040 .023 .010 .002 1 .020 .095 .180 .255 .320 |.375 .420 .455 .480 .495 .500 .495 .480 .455 .420 .375 .320 .255 .180 .095 .010 .023 .063 .203 .166 2 .000 .002 .040 .090 .123 .160 .250 .303 360 .423 .490 .563 .640 .723 .810 .902 .970 .857 .729 .614 .512 .422 .343 .275 .216 .125 .091 .064 .043 .027 .016 .008 .003 .001 .000 1 .029 .135 .243 .325 .384 .422 .441 .444 .432 .408 .375 .334 .288 .239 .189 .141 .096 .057 .027 .007 .000 .007 .027 .057 .096 .141 .189 .239 .288 .334 .375 .408 .432 .444 .441 .422 .384 .325 .243 .135 3 .000 .000 .001 .003 .008 .016 .027 .043 .064 .091 .125 .166 .216 .275 .343 .422 .512 .614 .729 .857 4 .961 .815 .656 .522 .410 .316 .240 .179 .130 .092 .062 .041 .026 .015 .008 .004 .002 .001 .000 .000 1 .039 .171 .292 .368 .410 .422 .412 .384 .346 .300 .250 .200 .154 .112 .076 .047 .026 .011 .004 .000 .211 | .256 .026 |.047|.076 .001 .014 .049 .098 .154 .311 .346 .368 .375 .368 .346 .311 .265 .211 .154 .098 .049 .014 3 .000 .000 .004 .011 .112 .154 .200 .250 .300 .346 .384 .412 .422 .410 .368 .292 .171 4 .000 .000 .000 .001 .002 .004 .008 .015 .026 .041 .062 .092 .130 .179 .240 .316 .410 .522 .656 .815 .951 .774 .590 .444 .328 .237 .168 .116 .078 .050 .031 .019 .010 .005 .002 .001 .000 .000 .000 .000 1 .048 .204 .328 .392 .410 .396 .360 .312 .259 .206 .156 .113 .077 .049 .028 .015 .006 .002 .000 .000 .205 .051 .006 |.015 .000 |.001 .001 .021 .073 .138 .264 .309 .336 .346 .337 .312 .276 .230 .181 .132 .088 .051 .024 .008 .001 3 .000 .001 .008 .024 .088 .132 .181 .230 .276 .312 .337 .346 .336 .309 .264 .205 .138 .073 .021 .360 .168 4 .000 .000 .000 .002 .028 .049 .077 .113 .156 .206 .259 .312 .396 .410 .392 .328 .204 5 .000 .000 .000 .000 .002 .005 .010 .019 .031 .050 .078 .116 .237 .328 .444 .590 .774
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