In multivariable calculus and in statistics courses, itis shown that for any positive cr. The function r_ -c/2 )^)2 dx=u J-oo o J2tz f(x) - a V27Z is the normal density function with mean /x 0 and standard deviation a. The probability that a randomly chosen value described by this distribution liesin [a, h\is given by /(x) dx. Approximate to within 10-5 the probability that a randomly chosen value described by this distribution will lie in a. [a, a] b. [2cr, 2ct] c. [3(7,3(7]

For regular future tense verbs, use the infinitive form of the word and then add these endings: Yo form -é Tu form -ás, El/ella/usted -á, Nosotros -emos Ellos/ellas -án. Irregular forms Salir- “salr” then conjugate Poner- “ponr” then conjugate Valer- “valdr” then conjugate Venir- “vendr” then conjugate Tener- “tendr”, then conjugate Same for conditional (used when pondering hypothetical scenarios) tense. The irregular stems are the same. Simply use the infinitive and then add these endings Conditional tense- IF something happened or were to happen Use these endings and add to infinitive for regular verbs Yo form -ía tú -ías él/ella -ía nosotros/as (we) -íamos ellos/as (they) -ían