The current price of a non$-$dividend$-$paying stock is $$284$ and the annual standard deviation of the rate of return on the stock is $30\%.$

A European call option on the stock expires in $0\mathrm{.}25$ years. Its strike price is $$350.$

The risk$-$free rate is $2\%($continuously compounded$).$

Part $1$

Attempt $\frac{3}{5}$ for $9\mathrm{.}8$ pts$.$

What is the value of $N(d_1)$ in the Black$-$Scholes formula? Use Excel's NORM.S$.$DIST $,$ true